Home > Time Zones > Abbreviations > GMT – Greenwich Mean Time

GMT – Greenwich Mean Time / Coordinated Universal Time (Standard Time)

Also known as: UTC – Coordinated Universal Time, GT – Greenwich Time

Time zone map of GMT
Currently observing GMT.
Areas with same time currently (UTC +0:00).
Currently observing GMT – Greenwich Mean Time.
Currently has same time zone offset as GMT (UTC +0:00) but different time zone name.

Greenwich Mean Time (GMT) has no offset from Coordinated Universal Time (UTC). This time zone is a standard time zone and is used in: Europe, Africa, North America.

This time zone is often called Greenwich Mean Time.

See full time zone map

Summer Time & DST

Some places observe daylight saving time/summer time during the summer, and therefore use IST (Irish Standard Time) or BST (British Summer Time) in the summer.

Email time zone indicator: +0000

An email sent from someone in the Greenwich Mean Time (GMT) time zone will have the time zone listed as "+0000" in the headers of the email. (However, "+0000" does not have to be in Greenwich Mean Time, as other time zones could have the same UTC offset).

Where and when is GMT observed?

Europe

European countries/territories using GMT all year

  • Greenland
  • Iceland

European countries/territories using GMT in the winter and IST or BST in the summer

  • Ireland
  • Isle of Man
  • United Kingdom - main islands Show

    England, Wales, Scotland, Northern Ireland

Africa

African countries using GMT all year

  • Burkina Faso
  • Cote d'Ivoire (Ivory Coast)
  • Gambia
  • Ghana
  • Guinea
  • Guinea-Bissau
  • Liberia
  • Mali
  • Mauritania
  • Saint Helena
  • Sao Tome and Principe
  • Senegal
  • Sierra Leone
  • Togo
This time zone is no longer in use, but some locations may observe the same UTC offset (local time) under a different name.

GMT time now

9:05:41PM

Thursday, December 18, 2014

  • UTC Offset: UTC +0:00
  • 5 hours ahead of New York

Find current time and time zone by city


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Example cities

United Kingdom – London (Winter)
Iceland – Reykjavik (All Year)
Sierra Leone – Freetown (All Year)

Related time zones

IST – Irish Standard Time (Daylight Time)
BST – British Summer Time (Daylight Time)


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