DateTime
DateTime : Scalar
ISO 8601 timestamp followed by timezone identifier. All timestamps must include a timezone unless UTC zero offset. Examples:
2026-08-19T16:50:23-04:00 New_York // eastern daylight time
2026-08-19T20:50:23Z UTC // same time in UTC
2026-08-19T20:50:23Z // may omit timezone if offset is Z
2026-08-19T14:50:23.507-06:00 Denver // fractional seconds