Package org.joda.time

Class LocalDateTime

java.lang.Object
org.joda.time.base.AbstractPartial
org.joda.time.base.BaseLocal
org.joda.time.LocalDateTime
All Implemented Interfaces:
Serializable, Comparable<ReadablePartial>, ReadablePartial
public final class LocalDateTime extends BaseLocal implements ReadablePartial, Serializable
LocalDateTime is an unmodifiable datetime class representing a datetime without a time zone.

LocalDateTime implements the ReadablePartial interface. To do this, certain methods focus on key fields Year, MonthOfYear, DayOfYear and MillisOfDay. However, all fields may in fact be queried.

Internally, LocalDateTime uses a single millisecond-based value to represent the local datetime. This value is only used internally and is not exposed to applications.

Calculations on LocalDateTime are performed using a Chronology. This chronology will be set internally to be in the UTC time zone for all calculations.

Each individual field can be queried in two ways:

  • getHourOfDay()
  • hourOfDay().get()
The second technique also provides access to other useful methods on the field:
  • numeric value
  • text value
  • short text value
  • maximum/minimum values
  • add/subtract
  • set
  • rounding

LocalDateTime is thread-safe and immutable, provided that the Chronology is as well. All standard Chronology classes supplied are thread-safe and immutable.

Since:
1.3
See Also:

  • Constructor Details

    • LocalDateTime

      public LocalDateTime()
      Constructs an instance set to the current local time evaluated using ISO chronology in the default zone.

      Once the constructor is completed, the zone is no longer used.

      See Also:

    • LocalDateTime

      public LocalDateTime(DateTimeZone zone)
      Constructs an instance set to the current local time evaluated using ISO chronology in the specified zone.

      If the specified time zone is null, the default zone is used. Once the constructor is completed, the zone is no longer used.

      Parameters:
      zone - the time zone, null means default zone
      See Also:

    • LocalDateTime

      public LocalDateTime(Chronology chronology)
      Constructs an instance set to the current local time evaluated using specified chronology.

      If the chronology is null, ISO chronology in the default time zone is used. Once the constructor is completed, the zone is no longer used.

      Parameters:
      chronology - the chronology, null means ISOChronology in default zone
      See Also:

    • LocalDateTime

      public LocalDateTime(long instant)
      Constructs an instance set to the local time defined by the specified instant evaluated using ISO chronology in the default zone.

      Once the constructor is completed, the zone is no longer used.

      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z

    • LocalDateTime

      public LocalDateTime(long instant, DateTimeZone zone)
      Constructs an instance set to the local time defined by the specified instant evaluated using ISO chronology in the specified zone.

      If the specified time zone is null, the default zone is used. Once the constructor is completed, the zone is no longer used.

      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z
      zone - the time zone, null means default zone

    • LocalDateTime

      public LocalDateTime(long instant, Chronology chronology)
      Constructs an instance set to the local time defined by the specified instant evaluated using the specified chronology.

      If the chronology is null, ISO chronology in the default zone is used. Once the constructor is completed, the zone is no longer used.

      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z
      chronology - the chronology, null means ISOChronology in default zone

    • LocalDateTime

      public LocalDateTime(Object instant)
      Constructs an instance from an Object that represents a datetime.

      If the object contains no chronology, ISOChronology is used. If the object contains no time zone, the default zone is used. Once the constructor is completed, the zone is no longer used.

      The recognised object types are defined in ConverterManager and include ReadablePartial, ReadableInstant, String, Calendar and Date. The String formats are described by ISODateTimeFormat.localDateOptionalTimeParser(). The default String converter ignores the zone and only parses the field values.

      Parameters:
      instant - the datetime object
      Throws:
      IllegalArgumentException - if the instant is invalid

    • LocalDateTime

      public LocalDateTime(Object instant, DateTimeZone zone)
      Constructs an instance from an Object that represents a datetime, forcing the time zone to that specified.

      If the object contains no chronology, ISOChronology is used. If the specified time zone is null, the default zone is used. Once the constructor is completed, the zone is no longer used.

      The recognised object types are defined in ConverterManager and include ReadablePartial, ReadableInstant, String, Calendar and Date. The String formats are described by ISODateTimeFormat.localDateOptionalTimeParser(). The default String converter ignores the zone and only parses the field values.

      Parameters:
      instant - the datetime object
      zone - the time zone
      Throws:
      IllegalArgumentException - if the instant is invalid

    • LocalDateTime

      public LocalDateTime(Object instant, Chronology chronology)
      Constructs an instance from an Object that represents a datetime, using the specified chronology.

      If the chronology is null, ISO in the default time zone is used. Once the constructor is completed, the zone is no longer used. If the instant contains a chronology, it will be ignored. For example, passing a LocalDate and a different chronology will return a date with the year/month/day from the date applied unaltered to the specified chronology.

      The recognised object types are defined in ConverterManager and include ReadablePartial, ReadableInstant, String, Calendar and Date. The String formats are described by ISODateTimeFormat.localDateOptionalTimeParser(). The default String converter ignores the zone and only parses the field values.

      Parameters:
      instant - the datetime object
      chronology - the chronology
      Throws:
      IllegalArgumentException - if the instant is invalid

    • LocalDateTime

      public LocalDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour)
      Constructs an instance set to the specified date and time using ISOChronology.
      Parameters:
      year - the year
      monthOfYear - the month of the year, from 1 to 12
      dayOfMonth - the day of the month, from 1 to 31
      hourOfDay - the hour of the day, from 0 to 23
      minuteOfHour - the minute of the hour, from 0 to 59

    • LocalDateTime

      public LocalDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute)
      Constructs an instance set to the specified date and time using ISOChronology.
      Parameters:
      year - the year
      monthOfYear - the month of the year, from 1 to 12
      dayOfMonth - the day of the month, from 1 to 31
      hourOfDay - the hour of the day, from 0 to 23
      minuteOfHour - the minute of the hour, from 0 to 59
      secondOfMinute - the second of the minute, from 0 to 59

    • LocalDateTime

      public LocalDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond)
      Constructs an instance set to the specified date and time using ISOChronology.
      Parameters:
      year - the year
      monthOfYear - the month of the year, from 1 to 12
      dayOfMonth - the day of the month, from 1 to 31
      hourOfDay - the hour of the day, from 0 to 23
      minuteOfHour - the minute of the hour, from 0 to 59
      secondOfMinute - the second of the minute, from 0 to 59
      millisOfSecond - the millisecond of the second, from 0 to 999

    • LocalDateTime

      public LocalDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond, Chronology chronology)
      Constructs an instance set to the specified date and time using the specified chronology, whose zone is ignored.

      If the chronology is null, ISOChronology is used.

      Parameters:
      year - the year, valid values defined by the chronology
      monthOfYear - the month of the year, valid values defined by the chronology
      dayOfMonth - the day of the month, valid values defined by the chronology
      hourOfDay - the hour of the day, valid values defined by the chronology
      minuteOfHour - the minute of the hour, valid values defined by the chronology
      secondOfMinute - the second of the minute, valid values defined by the chronology
      millisOfSecond - the millisecond of the second, valid values defined by the chronology
      chronology - the chronology, null means ISOChronology in default zone

  • Method Details

    • now

      public static LocalDateTime now()
      Obtains a LocalDateTime set to the current system millisecond time using ISOChronology in the default time zone. The resulting object does not use the zone.
      Returns:
      the current date, not null
      Since:
      2.0

    • now

      public static LocalDateTime now(DateTimeZone zone)
      Obtains a LocalDateTime set to the current system millisecond time using ISOChronology in the specified time zone. The resulting object does not use the zone.
      Parameters:
      zone - the time zone, not null
      Returns:
      the current date, not null
      Since:
      2.0

    • now

      public static LocalDateTime now(Chronology chronology)
      Obtains a LocalDateTime set to the current system millisecond time using the specified chronology. The resulting object does not use the zone.
      Parameters:
      chronology - the chronology, not null
      Returns:
      the current date, not null
      Since:
      2.0

    • parse

      public static LocalDateTime parse(String str)
      Parses a LocalDateTime from the specified string.

      This uses ISODateTimeFormat.localDateOptionalTimeParser().

      Parameters:
      str - the string to parse, not null
      Since:
      2.0

    • parse

      public static LocalDateTime parse(String str, DateTimeFormatter formatter)
      Parses a LocalDateTime from the specified string using a formatter.
      Parameters:
      str - the string to parse, not null
      formatter - the formatter to use, not null
      Since:
      2.0

    • fromCalendarFields

      public static LocalDateTime fromCalendarFields(Calendar calendar)
      Constructs a LocalDateTime from a java.util.Calendar using exactly the same field values.

      Each field is queried from the Calendar and assigned to the LocalDateTime. This is useful if you have been using the Calendar as a local date, ignoring the zone.

      One advantage of this method is that this method is unaffected if the version of the time zone data differs between the JDK and Joda-Time. That is because the local field values are transferred, calculated using the JDK time zone data and without using the Joda-Time time zone data.

      This factory method ignores the type of the calendar and always creates a LocalDateTime with ISO chronology. It is expected that you will only pass in instances of GregorianCalendar however this is not validated.

      Parameters:
      calendar - the Calendar to extract fields from, not null
      Returns:
      the created local date-time, not null
      Throws:
      IllegalArgumentException - if the calendar is null
      IllegalArgumentException - if the date is invalid for the ISO chronology

    • fromDateFields

      public static LocalDateTime fromDateFields(Date date)
      Constructs a LocalDateTime from a java.util.Date using exactly the same field values.

      Each field is queried from the Date and assigned to the LocalDateTime. This is useful if you have been using the Date as a local date, ignoring the zone.

      One advantage of this method is that this method is unaffected if the version of the time zone data differs between the JDK and Joda-Time. That is because the local field values are transferred, calculated using the JDK time zone data and without using the Joda-Time time zone data.

      This factory method always creates a LocalDateTime with ISO chronology.

      Parameters:
      date - the Date to extract fields from, not null
      Returns:
      the created local date-time, not null
      Throws:
      IllegalArgumentException - if the calendar is null
      IllegalArgumentException - if the date is invalid for the ISO chronology

    • size

      public int size()
      Gets the number of fields in this partial, which is four. The supported fields are Year, MonthOfDay, DayOfMonth and MillisOfDay.
      Specified by:
      size in interface ReadablePartial
      Returns:
      the field count, four

    • getValue

      public int getValue(int index)
      Gets the value of the field at the specified index.

      This method is required to support the ReadablePartial interface. The supported fields are Year, MonthOfDay, DayOfMonth and MillisOfDay.

      Specified by:
      getValue in interface ReadablePartial
      Parameters:
      index - the index, zero to two
      Returns:
      the value
      Throws:
      IndexOutOfBoundsException - if the index is invalid

    • get

      public int get(DateTimeFieldType type)
      Get the value of one of the fields of a datetime.

      This method gets the value of the specified field. For example: 

       DateTime dt = new DateTime();
 int year = dt.get(DateTimeFieldType.year());
      Specified by:
      get in interface ReadablePartial
      Overrides:
      get in class AbstractPartial
      Parameters:
      type - a field type, usually obtained from DateTimeFieldType, not null
      Returns:
      the value of that field
      Throws:
      IllegalArgumentException - if the field type is null

    • isSupported

      public boolean isSupported(DateTimeFieldType type)
      Checks if the field type specified is supported by this local datetime and chronology. This can be used to avoid exceptions in get(DateTimeFieldType).
      Specified by:
      isSupported in interface ReadablePartial
      Overrides:
      isSupported in class AbstractPartial
      Parameters:
      type - a field type, usually obtained from DateTimeFieldType
      Returns:
      true if the field type is supported

    • isSupported

      public boolean isSupported(DurationFieldType type)
      Checks if the duration type specified is supported by this local datetime and chronology.
      Parameters:
      type - a duration type, usually obtained from DurationFieldType
      Returns:
      true if the field type is supported

    • getChronology

      public Chronology getChronology()
      Gets the chronology of the datetime.
      Specified by:
      getChronology in interface ReadablePartial
      Returns:
      the Chronology that the datetime is using

    • equals

      public boolean equals(Object partial)
      Compares this ReadablePartial with another returning true if the chronology, field types and values are equal.
      Specified by:
      equals in interface ReadablePartial
      Overrides:
      equals in class AbstractPartial
      Parameters:
      partial - an object to check against
      Returns:
      true if fields and values are equal

    • compareTo

      public int compareTo(ReadablePartial partial)
      Compares this partial with another returning an integer indicating the order.

      The fields are compared in order, from largest to smallest. The first field that is non-equal is used to determine the result.

      The specified object must be a partial instance whose field types match those of this partial.

      Specified by:
      compareTo in interface Comparable<ReadablePartial>
      Overrides:
      compareTo in class AbstractPartial
      Parameters:
      partial - an object to check against
      Returns:
      negative if this is less, zero if equal, positive if greater
      Throws:
      ClassCastException - if the partial is the wrong class or if it has field types that don't match
      NullPointerException - if the partial is null

    • toDateTime

      public DateTime toDateTime()
      Converts this object to a DateTime using the default zone.

      When the time zone is applied, the local date-time may be affected by daylight saving. In a daylight saving gap, when the local time does not exist, this method will throw an exception. In a daylight saving overlap, when the same local time occurs twice, this method returns the first occurrence of the local time.

      Returns:
      this
      Throws:
      IllegalInstantException - if the local time does not exist when the time zone is applied

    • toDateTime

      public DateTime toDateTime(DateTimeZone zone)
      Converts this object to a DateTime using the specified zone.

      When the time zone is applied, the local date-time may be affected by daylight saving. In a daylight saving gap, when the local time does not exist, this method will throw an exception. In a daylight saving overlap, when the same local time occurs twice, this method returns the first occurrence of the local time.

      Parameters:
      zone - time zone to apply, or default if null
      Returns:
      a DateTime using the same millis
      Throws:
      IllegalInstantException - if the local time does not exist when the time zone is applied

    • toLocalDate

      public LocalDate toLocalDate()
      Converts this object to a LocalDate with the same date and chronology.
      Returns:
      a LocalDate with the same date and chronology

    • toLocalTime

      public LocalTime toLocalTime()
      Converts this object to a LocalTime with the same time and chronology.
      Returns:
      a LocalTime with the same time and chronology

    • toDate

      public Date toDate()
      Get the date time as a java.util.Date.

      The Date object created has exactly the same fields as this date-time, except when the time would be invalid due to a daylight savings gap. In that case, the time will be set to the earliest valid time after the gap.

      In the case of a daylight savings overlap, the earlier instant is selected.

      Converting to a JDK Date is full of complications as the JDK Date constructor doesn't behave as you might expect around DST transitions. This method works by taking a first guess and then adjusting. This also handles the situation where the JDK time zone data differs from the Joda-Time time zone data.

      Returns:
      a Date initialised with this date-time, never null
      Since:
      2.0

    • toDate

      public Date toDate(TimeZone timeZone)
      Get the date time as a java.util.Date using the specified time zone.

      The Date object created has exactly the same fields as this date-time, except when the time would be invalid due to a daylight savings gap. In that case, the time will be set to the earliest valid time after the gap.

      In the case of a daylight savings overlap, the earlier instant is selected.

      Converting to a JDK Date is full of complications as the JDK Date constructor doesn't behave as you might expect around DST transitions. This method works by taking a first guess and then adjusting. This also handles the situation where the JDK time zone data differs from the Joda-Time time zone data.

      Unlike toDate(), this implementation does not rely on Java's synchronized time zone initialization logic, and should demonstrate better concurrent performance characteristics.

      Returns:
      a Date initialised with this date-time, never null
      Since:
      2.3

    • withDate

      public LocalDateTime withDate(int year, int monthOfYear, int dayOfMonth)
      Returns a copy of this datetime with the specified date, retaining the time fields.

      If the date is already the date passed in, then this is returned.

      To set a single field use the properties, for example: 

       DateTime set = dt.monthOfYear().setCopy(6);
      Parameters:
      year - the new year value
      monthOfYear - the new monthOfYear value
      dayOfMonth - the new dayOfMonth value
      Returns:
      a copy of this datetime with a different date
      Throws:
      IllegalArgumentException - if any value if invalid

    • withTime

      public LocalDateTime withTime(int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond)
      Returns a copy of this datetime with the specified time, retaining the date fields.

      If the time is already the time passed in, then this is returned.

      To set a single field use the properties, for example: 

       LocalDateTime set = dt.hourOfDay().setCopy(6);
      Parameters:
      hourOfDay - the hour of the day
      minuteOfHour - the minute of the hour
      secondOfMinute - the second of the minute
      millisOfSecond - the millisecond of the second
      Returns:
      a copy of this datetime with a different time
      Throws:
      IllegalArgumentException - if any value if invalid

    • withFields

      public LocalDateTime withFields(ReadablePartial partial)
      Returns a copy of this datetime with the partial set of fields replacing those from this instance.

      For example, if the partial is a TimeOfDay then the time fields would be changed in the returned instance. If the partial is null, then this is returned.

      Parameters:
      partial - the partial set of fields to apply to this datetime, null ignored
      Returns:
      a copy of this datetime with a different set of fields
      Throws:
      IllegalArgumentException - if any value is invalid

    • withField

      public LocalDateTime withField(DateTimeFieldType fieldType, int value)
      Returns a copy of this datetime with the specified field set to a new value.

      For example, if the field type is hourOfDay then the hour of day field would be changed in the returned instance. If the field type is null, then this is returned.

      These three lines are equivalent: 

       LocalDateTime updated = dt.withField(DateTimeFieldType.dayOfMonth(), 6);
 LocalDateTime updated = dt.dayOfMonth().setCopy(6);
 LocalDateTime updated = dt.property(DateTimeFieldType.dayOfMonth()).setCopy(6);
      Parameters:
      fieldType - the field type to set, not null
      value - the value to set
      Returns:
      a copy of this datetime with the field set
      Throws:
      IllegalArgumentException - if the value is null or invalid

    • withFieldAdded

      public LocalDateTime withFieldAdded(DurationFieldType fieldType, int amount)
      Returns a copy of this datetime with the value of the specified field increased.

      If the addition is zero or the field is null, then this is returned.

      These three lines are equivalent: 

       LocalDateTime added = dt.withFieldAdded(DurationFieldType.years(), 6);
 LocalDateTime added = dt.plusYears(6);
 LocalDateTime added = dt.plus(Period.years(6));
      Parameters:
      fieldType - the field type to add to, not null
      amount - the amount to add
      Returns:
      a copy of this datetime with the field updated
      Throws:
      IllegalArgumentException - if the value is null or invalid
      ArithmeticException - if the result exceeds the internal capacity

    • withDurationAdded

      public LocalDateTime withDurationAdded(ReadableDuration durationToAdd, int scalar)
      Returns a copy of this datetime with the specified duration added.

      If the addition is zero, then this is returned.

      Parameters:
      durationToAdd - the duration to add to this one, null means zero
      scalar - the amount of times to add, such as -1 to subtract once
      Returns:
      a copy of this datetime with the duration added
      Throws:
      ArithmeticException - if the result exceeds the internal capacity

    • withPeriodAdded

      public LocalDateTime withPeriodAdded(ReadablePeriod period, int scalar)
      Returns a copy of this datetime with the specified period added.

      If the addition is zero, then this is returned.

      This method is typically used to add multiple copies of complex period instances. Adding one field is best achieved using methods like withFieldAdded(DurationFieldType, int) or plusYears(int).

      Parameters:
      period - the period to add to this one, null means zero
      scalar - the amount of times to add, such as -1 to subtract once
      Returns:
      a copy of this datetime with the period added
      Throws:
      ArithmeticException - if the result exceeds the internal capacity

    • plus

      public LocalDateTime plus(ReadableDuration duration)
      Returns a copy of this datetime with the specified duration added.

      If the amount is zero or null, then this is returned.

      Parameters:
      duration - the duration to add to this one, null means zero
      Returns:
      a copy of this datetime with the duration added
      Throws:
      ArithmeticException - if the result exceeds the internal capacity

    • plus

      public LocalDateTime plus(ReadablePeriod period)
      Returns a copy of this datetime with the specified period added.

      If the amount is zero or null, then this is returned.

      This method is typically used to add complex period instances. Adding one field is best achieved using methods like plusYears(int).

      Parameters:
      period - the period to add to this one, null means zero
      Returns:
      a copy of this datetime with the period added
      Throws:
      ArithmeticException - if the result exceeds the internal capacity

    • plusYears

      public LocalDateTime plusYears(int years)
      Returns a copy of this datetime plus the specified number of years.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusYears(6);
 LocalDateTime added = dt.plus(Period.years(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.years(), 6);
      Parameters:
      years - the amount of years to add, may be negative
      Returns:
      the new LocalDateTime plus the increased years

    • plusMonths

      public LocalDateTime plusMonths(int months)
      Returns a copy of this datetime plus the specified number of months.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusMonths(6);
 LocalDateTime added = dt.plus(Period.months(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.months(), 6);
      Parameters:
      months - the amount of months to add, may be negative
      Returns:
      the new LocalDateTime plus the increased months

    • plusWeeks

      public LocalDateTime plusWeeks(int weeks)
      Returns a copy of this datetime plus the specified number of weeks.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusWeeks(6);
 LocalDateTime added = dt.plus(Period.weeks(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.weeks(), 6);
      Parameters:
      weeks - the amount of weeks to add, may be negative
      Returns:
      the new LocalDateTime plus the increased weeks

    • plusDays

      public LocalDateTime plusDays(int days)
      Returns a copy of this datetime plus the specified number of days.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusDays(6);
 LocalDateTime added = dt.plus(Period.days(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.days(), 6);
      Parameters:
      days - the amount of days to add, may be negative
      Returns:
      the new LocalDateTime plus the increased days

    • plusHours

      public LocalDateTime plusHours(int hours)
      Returns a copy of this datetime plus the specified number of hours.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusHours(6);
 LocalDateTime added = dt.plus(Period.hours(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.hours(), 6);
      Parameters:
      hours - the amount of hours to add, may be negative
      Returns:
      the new LocalDateTime plus the increased hours

    • plusMinutes

      public LocalDateTime plusMinutes(int minutes)
      Returns a copy of this datetime plus the specified number of minutes.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusMinutes(6);
 LocalDateTime added = dt.plus(Period.minutes(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.minutes(), 6);
      Parameters:
      minutes - the amount of minutes to add, may be negative
      Returns:
      the new LocalDateTime plus the increased minutes

    • plusSeconds

      public LocalDateTime plusSeconds(int seconds)
      Returns a copy of this datetime plus the specified number of seconds.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusSeconds(6);
 LocalDateTime added = dt.plus(Period.seconds(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.seconds(), 6);
      Parameters:
      seconds - the amount of seconds to add, may be negative
      Returns:
      the new LocalDateTime plus the increased seconds

    • plusMillis

      public LocalDateTime plusMillis(int millis)
      Returns a copy of this datetime plus the specified number of millis.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime added = dt.plusMillis(6);
 LocalDateTime added = dt.plus(Period.millis(6));
 LocalDateTime added = dt.withFieldAdded(DurationFieldType.millis(), 6);
      Parameters:
      millis - the amount of millis to add, may be negative
      Returns:
      the new LocalDateTime plus the increased millis

    • minus

      public LocalDateTime minus(ReadableDuration duration)
      Returns a copy of this datetime with the specified duration taken away.

      If the amount is zero or null, then this is returned.

      Parameters:
      duration - the duration to reduce this instant by
      Returns:
      a copy of this datetime with the duration taken away
      Throws:
      ArithmeticException - if the result exceeds the internal capacity

    • minus

      public LocalDateTime minus(ReadablePeriod period)
      Returns a copy of this datetime with the specified period taken away.

      If the amount is zero or null, then this is returned.

      This method is typically used to subtract complex period instances. Subtracting one field is best achieved using methods like minusYears(int).

      Parameters:
      period - the period to reduce this instant by
      Returns:
      a copy of this datetime with the period taken away
      Throws:
      ArithmeticException - if the result exceeds the internal capacity

    • minusYears

      public LocalDateTime minusYears(int years)
      Returns a copy of this datetime minus the specified number of years.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusYears(6);
 LocalDateTime subtracted = dt.minus(Period.years(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.years(), -6);
      Parameters:
      years - the amount of years to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased years

    • minusMonths

      public LocalDateTime minusMonths(int months)
      Returns a copy of this datetime minus the specified number of months.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusMonths(6);
 LocalDateTime subtracted = dt.minus(Period.months(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.months(), -6);
      Parameters:
      months - the amount of months to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased months

    • minusWeeks

      public LocalDateTime minusWeeks(int weeks)
      Returns a copy of this datetime minus the specified number of weeks.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusWeeks(6);
 LocalDateTime subtracted = dt.minus(Period.weeks(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.weeks(), -6);
      Parameters:
      weeks - the amount of weeks to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased weeks

    • minusDays

      public LocalDateTime minusDays(int days)
      Returns a copy of this datetime minus the specified number of days.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusDays(6);
 LocalDateTime subtracted = dt.minus(Period.days(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.days(), -6);
      Parameters:
      days - the amount of days to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased days

    • minusHours

      public LocalDateTime minusHours(int hours)
      Returns a copy of this datetime minus the specified number of hours.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusHours(6);
 LocalDateTime subtracted = dt.minus(Period.hours(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.hours(), -6);
      Parameters:
      hours - the amount of hours to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased hours

    • minusMinutes

      public LocalDateTime minusMinutes(int minutes)
      Returns a copy of this datetime minus the specified number of minutes.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusMinutes(6);
 LocalDateTime subtracted = dt.minus(Period.minutes(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.minutes(), -6);
      Parameters:
      minutes - the amount of minutes to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased minutes

    • minusSeconds

      public LocalDateTime minusSeconds(int seconds)
      Returns a copy of this datetime minus the specified number of seconds.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusSeconds(6);
 LocalDateTime subtracted = dt.minus(Period.seconds(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.seconds(), -6);
      Parameters:
      seconds - the amount of seconds to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased seconds

    • minusMillis

      public LocalDateTime minusMillis(int millis)
      Returns a copy of this datetime minus the specified number of millis.

      This LocalDateTime instance is immutable and unaffected by this method call.

      The following three lines are identical in effect: 

       LocalDateTime subtracted = dt.minusMillis(6);
 LocalDateTime subtracted = dt.minus(Period.millis(6));
 LocalDateTime subtracted = dt.withFieldAdded(DurationFieldType.millis(), -6);
      Parameters:
      millis - the amount of millis to subtract, may be negative
      Returns:
      the new LocalDateTime minus the increased millis

    • property

      public LocalDateTime.Property property(DateTimeFieldType fieldType)
      Gets the property object for the specified type, which contains many useful methods.
      Parameters:
      fieldType - the field type to get the chronology for
      Returns:
      the property object
      Throws:
      IllegalArgumentException - if the field is null or unsupported

    • getEra

      public int getEra()
      Get the era field value.
      Returns:
      the era

    • getCenturyOfEra

      public int getCenturyOfEra()
      Get the year of era field value.
      Returns:
      the year of era

    • getYearOfEra

      public int getYearOfEra()
      Get the year of era field value.
      Returns:
      the year of era

    • getYearOfCentury

      public int getYearOfCentury()
      Get the year of century field value.
      Returns:
      the year of century

    • getYear

      public int getYear()
      Get the year field value.
      Returns:
      the year

    • getWeekyear

      public int getWeekyear()
      Get the weekyear field value.

      The weekyear is the year that matches with the weekOfWeekyear field. In the standard ISO8601 week algorithm, the first week of the year is that in which at least 4 days are in the year. As a result of this definition, day 1 of the first week may be in the previous year. The weekyear allows you to query the effective year for that day.

      Returns:
      the weekyear

    • getMonthOfYear

      public int getMonthOfYear()
      Get the month of year field value.
      Returns:
      the month of year

    • getWeekOfWeekyear

      public int getWeekOfWeekyear()
      Get the week of weekyear field value.

      This field is associated with the "weekyear" via getWeekyear(). In the standard ISO8601 week algorithm, the first week of the year is that in which at least 4 days are in the year. As a result of this definition, day 1 of the first week may be in the previous year.

      Returns:
      the week of a week based year

    • getDayOfYear

      public int getDayOfYear()
      Get the day of year field value.
      Returns:
      the day of year

    • getDayOfMonth

      public int getDayOfMonth()
      Get the day of month field value.

      The values for the day of month are defined in DateTimeConstants.

      Returns:
      the day of month

    • getDayOfWeek

      public int getDayOfWeek()
      Get the day of week field value.

      The values for the day of week are defined in DateTimeConstants.

      Returns:
      the day of week

    • getHourOfDay

      public int getHourOfDay()
      Get the hour of day field value.
      Returns:
      the hour of day

    • getMinuteOfHour

      public int getMinuteOfHour()
      Get the minute of hour field value.
      Returns:
      the minute of hour

    • getSecondOfMinute

      public int getSecondOfMinute()
      Get the second of minute field value.
      Returns:
      the second of minute

    • getMillisOfSecond

      public int getMillisOfSecond()
      Get the millis of second field value.
      Returns:
      the millis of second

    • getMillisOfDay

      public int getMillisOfDay()
      Get the millis of day field value.
      Returns:
      the millis of day

    • withEra

      public LocalDateTime withEra(int era)
      Returns a copy of this datetime with the era field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of era changed.

      Parameters:
      era - the era to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withCenturyOfEra

      public LocalDateTime withCenturyOfEra(int centuryOfEra)
      Returns a copy of this datetime with the century of era field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of century of era changed.

      Parameters:
      centuryOfEra - the century of era to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withYearOfEra

      public LocalDateTime withYearOfEra(int yearOfEra)
      Returns a copy of this datetime with the year of era field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of year of era changed.

      Parameters:
      yearOfEra - the year of era to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withYearOfCentury

      public LocalDateTime withYearOfCentury(int yearOfCentury)
      Returns a copy of this datetime with the year of century field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of year of century changed.

      Parameters:
      yearOfCentury - the year of century to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withYear

      public LocalDateTime withYear(int year)
      Returns a copy of this datetime with the year field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of year changed.

      Parameters:
      year - the year to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withWeekyear

      public LocalDateTime withWeekyear(int weekyear)
      Returns a copy of this datetime with the weekyear field updated.

      The weekyear is the year that matches with the weekOfWeekyear field. In the standard ISO8601 week algorithm, the first week of the year is that in which at least 4 days are in the year. As a result of this definition, day 1 of the first week may be in the previous year. The weekyear allows you to query the effective year for that day.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of weekyear changed.

      Parameters:
      weekyear - the weekyear to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withMonthOfYear

      public LocalDateTime withMonthOfYear(int monthOfYear)
      Returns a copy of this datetime with the month of year field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of month of year changed.

      Parameters:
      monthOfYear - the month of year to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withWeekOfWeekyear

      public LocalDateTime withWeekOfWeekyear(int weekOfWeekyear)
      Returns a copy of this datetime with the week of weekyear field updated.

      This field is associated with the "weekyear" via withWeekyear(int). In the standard ISO8601 week algorithm, the first week of the year is that in which at least 4 days are in the year. As a result of this definition, day 1 of the first week may be in the previous year.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of week of weekyear changed.

      Parameters:
      weekOfWeekyear - the week of weekyear to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withDayOfYear

      public LocalDateTime withDayOfYear(int dayOfYear)
      Returns a copy of this datetime with the day of year field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of day of year changed.

      Parameters:
      dayOfYear - the day of year to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withDayOfMonth

      public LocalDateTime withDayOfMonth(int dayOfMonth)
      Returns a copy of this datetime with the day of month field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of day of month changed.

      Parameters:
      dayOfMonth - the day of month to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withDayOfWeek

      public LocalDateTime withDayOfWeek(int dayOfWeek)
      Returns a copy of this datetime with the day of week field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of day of week changed.

      Parameters:
      dayOfWeek - the day of week to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withHourOfDay

      public LocalDateTime withHourOfDay(int hour)
      Returns a copy of this datetime with the hour of day field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of hour of day changed.

      Parameters:
      hour - the hour of day to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withMinuteOfHour

      public LocalDateTime withMinuteOfHour(int minute)
      Returns a copy of this datetime with the minute of hour field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of minute of hour changed.

      Parameters:
      minute - the minute of hour to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withSecondOfMinute

      public LocalDateTime withSecondOfMinute(int second)
      Returns a copy of this datetime with the second of minute field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of second of minute changed.

      Parameters:
      second - the second of minute to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withMillisOfSecond

      public LocalDateTime withMillisOfSecond(int millis)
      Returns a copy of this datetime with the millis of second field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of millis of second changed.

      Parameters:
      millis - the millis of second to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • withMillisOfDay

      public LocalDateTime withMillisOfDay(int millis)
      Returns a copy of this datetime with the millis of day field updated.

      LocalDateTime is immutable, so there are no set methods. Instead, this method returns a new instance with the value of millis of day changed.

      Parameters:
      millis - the millis of day to set
      Returns:
      a copy of this object with the field set
      Throws:
      IllegalArgumentException - if the value is invalid

    • era

      public LocalDateTime.Property era()
      Get the era property which provides access to advanced functionality.
      Returns:
      the era property

    • centuryOfEra

      public LocalDateTime.Property centuryOfEra()
      Get the century of era property which provides access to advanced functionality.
      Returns:
      the year of era property

    • yearOfCentury

      public LocalDateTime.Property yearOfCentury()
      Get the year of century property which provides access to advanced functionality.
      Returns:
      the year of era property

    • yearOfEra

      public LocalDateTime.Property yearOfEra()
      Get the year of era property which provides access to advanced functionality.
      Returns:
      the year of era property

    • year

      public LocalDateTime.Property year()
      Get the year property which provides access to advanced functionality.
      Returns:
      the year property

    • weekyear

      public LocalDateTime.Property weekyear()
      Get the weekyear property which provides access to advanced functionality.
      Returns:
      the weekyear property

    • monthOfYear

      public LocalDateTime.Property monthOfYear()
      Get the month of year property which provides access to advanced functionality.
      Returns:
      the month of year property

    • weekOfWeekyear

      public LocalDateTime.Property weekOfWeekyear()
      Get the week of a week based year property which provides access to advanced functionality.
      Returns:
      the week of a week based year property

    • dayOfYear

      public LocalDateTime.Property dayOfYear()
      Get the day of year property which provides access to advanced functionality.
      Returns:
      the day of year property

    • dayOfMonth

      public LocalDateTime.Property dayOfMonth()
      Get the day of month property which provides access to advanced functionality.
      Returns:
      the day of month property

    • dayOfWeek

      public LocalDateTime.Property dayOfWeek()
      Get the day of week property which provides access to advanced functionality.
      Returns:
      the day of week property

    • hourOfDay

      public LocalDateTime.Property hourOfDay()
      Get the hour of day field property which provides access to advanced functionality.
      Returns:
      the hour of day property

    • minuteOfHour

      public LocalDateTime.Property minuteOfHour()
      Get the minute of hour field property which provides access to advanced functionality.
      Returns:
      the minute of hour property

    • secondOfMinute

      public LocalDateTime.Property secondOfMinute()
      Get the second of minute field property which provides access to advanced functionality.
      Returns:
      the second of minute property

    • millisOfSecond

      public LocalDateTime.Property millisOfSecond()
      Get the millis of second property which provides access to advanced functionality.
      Returns:
      the millis of second property

    • millisOfDay

      public LocalDateTime.Property millisOfDay()
      Get the millis of day property which provides access to advanced functionality.
      Returns:
      the millis of day property

    • toString

      public String toString()
      Output the date time in ISO8601 format (yyyy-MM-ddTHH:mm:ss.SSS).
      Specified by:
      toString in interface ReadablePartial
      Overrides:
      toString in class Object
      Returns:
      ISO8601 time formatted string.

    • toString

      public String toString(String pattern)
      Output the date using the specified format pattern.
      Parameters:
      pattern - the pattern specification, null means use toString
      See Also:

    • toString

      public String toString(String pattern, Locale locale) throws IllegalArgumentException
      Output the date using the specified format pattern.
      Parameters:
      pattern - the pattern specification, null means use toString
      locale - Locale to use, null means default
      Throws:
      IllegalArgumentException
      See Also: