UTC
Coordinated Universal Time
The global reference time used for offsets and technical scheduling.
Open abbreviation pageReference
Time zone abbreviations
Decode common abbreviations such as UTC, GMT, EST, CET, JST, KST, IST, and WAT. Some abbreviations are ambiguous, so the matching country or city matters.
UTC+00:00
GMT
Greenwich Mean Time
Often used in the United Kingdom during winter and as a general reference term.
Open abbreviation pageCET
Central European Time
Standard time for many central European countries.
Open abbreviation pageCEST
Central European Summer Time
Daylight saving time used across much of central Europe.
Open abbreviation pageEET
Eastern European Time
Standard time for parts of eastern Europe and the eastern Mediterranean.
Open abbreviation pageEST
Eastern Standard Time
Standard time for eastern North America. Also used by some places year-round.
Open abbreviation pageEDT
Eastern Daylight Time
Daylight saving time for eastern North America.
Open abbreviation pageCST
Central Standard Time
Ambiguous abbreviation: can also mean China Standard Time or Cuba Standard Time.
Open abbreviation pagePST
Pacific Standard Time
Standard time for the Pacific coast of North America.
Open abbreviation pagePDT
Pacific Daylight Time
Daylight saving time for the Pacific coast of North America.
Open abbreviation pageJST
Japan Standard Time
Japan does not currently use daylight saving time.
Open abbreviation pageKST
Korea Standard Time
South Korea does not currently use daylight saving time.
Open abbreviation pageCST China
China Standard Time
China uses one official time zone nationwide.
Open abbreviation pageIST
India Standard Time
Ambiguous abbreviation: IST can also mean Irish Standard Time or Israel Standard Time.
Open abbreviation pageGST
Gulf Standard Time
Used by the United Arab Emirates and Oman year-round.
Open abbreviation pageAEST
Australian Eastern Standard Time
Used in eastern Australia; daylight saving rules vary by state.
Open abbreviation pageAEDT
Australian Eastern Daylight Time
Summer daylight saving time in parts of eastern Australia.
Open abbreviation pageNZST
New Zealand Standard Time
New Zealand's standard time outside daylight saving.
Open abbreviation pageNZDT
New Zealand Daylight Time
New Zealand's daylight saving time.
Open abbreviation pageWAT
West Africa Time
Used year-round in Nigeria and several West/Central African countries.
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