Time Zone Abbreviations & UTC Offset Lookup
Look up current UTC offsets and time zone abbreviations such as EST, CET and JST, with standard and daylight times and DST dates per zone.
π Runs entirely in your browser β nothing is uploadedFind any zone's offset
This table lists around fifty major time zones with their abbreviation and UTC offset right now, their standard offset, their daylight saving offset, and the dates when daylight saving starts and ends in the year you select. Use the filter box to search for a city, a region or an abbreviation such as EST, PST, CET or IST.
A UTC offset is the number of hours and minutes a zone is ahead of or behind Coordinated Universal Time. New York is UTC-05:00 in winter and UTC-04:00 in summer, while Tokyo stays at UTC+09:00 all year.
Abbreviations can be ambiguous
Many abbreviations are used by more than one region. IST can mean India Standard Time, Irish Summer Time or Israel Standard Time, and CST can mean Central Standard Time, China Standard Time or Cuba Standard Time. For this reason, scheduling tools use IANA zone names such as America/Chicago and Asia/Kolkata, and this table shows both.
Your browser may display an abbreviation or an offset like GMT+1 depending on its language settings. The offsets themselves always come from the IANA time zone database built into the browser, so they follow real rule changes.
Daylight saving columns
The DST start and end columns show the exact local moment when clocks change in the selected year. A dash means that zone does not observe daylight saving that year. Zones in the southern hemisphere, such as Sydney, start daylight time in October and end in April. Everything is calculated locally in your browser; no data is requested from any server.
When you schedule an international call, quote the offset, not just the abbreviation, for example 15:00 UTC+01:00. This removes doubt about which IST or CST is meant and works across daylight saving changes, so everyone converts it correctly. Use the year field to look ahead or back; for example, check next year to plan travel, or last year to verify an old timestamp on a document.
How to use
- Search for a zoneType a city, zone name or abbreviation in the filter box.
- Pick a yearChoose the year to see its daylight saving start and end.
- Read the offsetsCompare the current, standard and daylight UTC offsets.