AWSTime

An extended ISO 8601 time string ( https://en.wikipedia.org/wiki/ISO_8601#Times ) in the format hh:mm:ss.sss. Can optionally include a time zone offset ( https://en.wikipedia.org/wiki/ISO_8601#Time_zone_designators ). The time zone offset must be either Z (UTC) or an offset in hours and minutes (and, optionally, seconds). For example, ±hh:mm:ss. The seconds field in the time zone offset is considered valid even though it's not part of the ISO 8601 standard.