libtzfile vs tzparse vs timezone-data

This library provides low and high level parsing of the IANA system timezone information files (TZIF).

This high-level library reads IANA system timezone information files and returns transition times (ie. daylight saving time) and human readable data about a timezone.

no_std, no-alloc parser for embedded IANA TZif timezone data: transitions, zone types, POSIX TZ rules, leap seconds, and zone metadata.