Signed seconds of the span of time. Must be from -315,576,000,000 to +315,576,000,000 inclusive.
Signed fractions of a second at nanosecond resolution of the span
of time. Durations less than one second are represented with a 0
seconds field and a positive or negative nanos field. For durations
of one second or more, a non-zero value for the nanos field must be
of the same sign as the seconds field. Must be from -999,999,999
to +999,999,999 inclusive.
Signed fractions of a second at nanosecond resolution of the span of time.
Signed fractions of a second at nanosecond resolution of the span
of time. Durations less than one second are represented with a 0
seconds field and a positive or negative nanos field. For durations
of one second or more, a non-zero value for the nanos field must be
of the same sign as the seconds field. Must be from -999,999,999
to +999,999,999 inclusive.
Signed seconds of the span of time.
Signed seconds of the span of time. Must be from -315,576,000,000 to +315,576,000,000 inclusive.
A Duration represents a signed, fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". It is related to Timestamp in that the difference between two Timestamp values is a Duration and it can be added or subtracted from a Timestamp. Range is approximately +-10,000 years.
Example 1: Compute Duration from two Timestamps in pseudo code.
Timestamp start = ...; Timestamp end = ...; Duration duration = ...;
duration.seconds = end.seconds - start.seconds; duration.nanos = end.nanos - start.nanos;
if (duration.seconds < 0 && duration.nanos > 0) { duration.seconds += 1; duration.nanos -= 1000000000; } else if (durations.seconds > 0 && duration.nanos < 0) { duration.seconds -= 1; duration.nanos += 1000000000; }
Example 2: Compute Timestamp from Timestamp + Duration in pseudo code.
Timestamp start = ...; Duration duration = ...; Timestamp end = ...;
end.seconds = start.seconds + duration.seconds; end.nanos = start.nanos + duration.nanos;
if (end.nanos < 0) { end.seconds -= 1; end.nanos += 1000000000; } else if (end.nanos >= 1000000000) { end.seconds += 1; end.nanos -= 1000000000; }
Signed seconds of the span of time. Must be from -315,576,000,000 to +315,576,000,000 inclusive.
Signed fractions of a second at nanosecond resolution of the span of time. Durations less than one second are represented with a 0
secondsfield and a positive or negativenanosfield. For durations of one second or more, a non-zero value for thenanosfield must be of the same sign as thesecondsfield. Must be from -999,999,999 to +999,999,999 inclusive.