Reference documentation and code samples for the Cloud Shell V1 API class Google::Protobuf::Duration.
A Duration represents a signed, fixed-length span of time representedas a count of seconds and fractions of seconds at nanosecondresolution. It is independent of any calendar and concepts like "day"or "month". It is related to Timestamp in that the difference betweentwo Timestamp values is a Duration and it can be added or subtractedfrom a Timestamp. Range is approximately +-10,000 years.
Examples
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 (duration.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;}
Example 3: Compute Duration from datetime.timedelta in Python.
td = datetime.timedelta(days=3, minutes=10)duration = Duration()duration.FromTimedelta(td)
JSON Mapping
In JSON format, the Duration type is encoded as a string rather than anobject, where the string ends in the suffix "s" (indicating seconds) andis preceded by the number of seconds, with nanoseconds expressed asfractional seconds. For example, 3 seconds with 0 nanoseconds should beencoded in JSON format as "3s", while 3 seconds and 1 nanosecond shouldbe expressed in JSON format as "3.000000001s", and 3 seconds and 1microsecond should be expressed in JSON format as "3.000001s".
