ISO 8601 combined date and time with time zone.
ISO 8601 time duration with nanosecond precision. This also allows for the negative duration; see individual methods for details.
The UTC time zone. This is the most efficient time zone when you don't need the local time. It is also used as an offset (which is also a dummy type).
Simple and safe type conversions that may fail in a controlled
way under some circumstances. It is the reciprocal of
An attempted conversion that consumes