EpochLab

Time Zone Lookup

Look up any IANA time zone

Search the full zone list, and see what one actually does: its current offset, its standard and summer offsets, its abbreviations and its next several transitions.

Questions people ask

The things that come up about time zone lookups, answered plainly.

What is an IANA time zone?

An entry in the tz database — the shared, maintained record of what every region's clocks have done since 1970. Names look like Europe/Paris. Every operating system and language runtime ships a copy, which is why zone names travel reliably and abbreviations do not.

Why are some zone names deprecated?

Because places rename, split, or turn out to have been the same zone all along. The database keeps old names as links — US/Eastern still works, but America/New_York is the canonical form.

Related tools

Convert between zones, watch a board of cities, and find the hour that suits everyone.

Time Zone Abbreviation LookupCST, IST, BST — the abbreviations that mean two or three different things each, with every zone that uses them and the offset each implies.
UTC Offset CalculatorThe current offset for any zone, in `+05:30` form and in minutes, with the standard and summer offsets and the dates it switches between them.
City Time FinderThe current time in any city, with its zone, offset, daylight-saving state and how far through its day it is.
World ClockA live board of cities with their offsets, their daylight-saving state, and a read on whether it is morning, working hours or the middle of the night there.

All 160 tools · More in time zones