A place for every zone.
Time Zone List & UTC Offsets
Search IANA time-zone identifiers, abbreviations, and offsets for a date.
Offsets at 12:00 UTC on 2026-11-09. Identifiers include regional aliases and fixed-offset zones. A place may have a different offset on another date.
597 identifiers
Rules: TZDB: 2026f (mapping: 49). Seasonal adjustment follows the database’s savings convention, which can be negative in some zones.
Time-zone names are more useful than fixed offsets
Europe/London contains the rules for London throughout the year. A fixed UTC+01:00 offset does not. Some identifiers are aliases for the same rules; they are not extra geographical time zones. In the legacy Etc/GMT identifiers, the sign is reversed: Etc/GMT+5 means UTC−05:00. Prefer a city-based identifier for scheduling.