GMT to WGST Converter
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.
Iceland and Ghana stay on GMT (UTC+0).
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
12:00 pm12:00 GMT (UTC+0), Oct 18, 2026 = 11:00 am11:00 WGST (UTC-1), Oct 18, 2026
GMT is 1 hour ahead of WGST.
GMT and WGST examples
These examples always use GMT (UTC+0) and WGST (UTC-1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
GMT is 1 hour ahead of WGST.
How the time difference changes
For most of the year, GMT is 1 hour ahead of WGST. From Oct 25, 2026 to Mar 28, 2027, GMT is 2 hours ahead of WGT.
For most of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 8:00 am to 5:00 pm in WGST. At other times of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 7:00 am to 4:00 pm in WGT.For most of the year, working hours of 09:00 to 18:00 in GMT correspond to 08:00 to 17:00 in WGST. At other times of the year, working hours of 09:00 to 18:00 in GMT correspond to 07:00 to 16:00 in WGT.
Compare GMT time with WGST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Greenwich Mean Time is 1 hour ahead of Western Greenland Summer Time.
12:00 pm12:00 in GMT is 11:00 am11:00 in WGST
GMT to WGST call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in GMT which corresponds to 9am-5pm09:00-17:00 in WGST
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
11:00 am11:00 Western Greenland Summer Time (WGST). Offset UTC -1:00 hours
12:00 pm12:00 GMT / 11:00 am11:00 WGST
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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Greenwich Mean Time
Offset: GMT is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara
Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.
Today the lighter areas are on UTC+1 (British Summer Time, Irish Standard Time).
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Western Greenland Summer Time
Offset: WGST is 1 hour behind Greenwich Mean Time (GMT).
Countries using this time zone: Greenland
Principal Cities: The largest city in the WGST time zone is Nuuk in Greenland, with about 14,798 people. Other major cities in this time zone include Sisimiut, Ilulissat, Qaqortoq, Aasiaat.
Today all shaded areas are on WGST.
Daylight Saving: Western Greenland Summer Time (WGST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe West Greenland Time (WGT).
Start: Western Greenland Summer Time (WGST) started on Saturday, March 28, 2026 at 11:00 pm23:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 12:00 am00:00.
End: Western Greenland Summer Time (WGST) ends on Sunday, October 25, 2026 at 12:00 am00:00 local time and clocks are set one hour back to Saturday, October 24, 2026, 11:00 pm23:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
See Greenland daylight saving time and upcoming clock changes worldwide.
WGST representations, usage and related time zones
- -01 - basic short
- -0100 - basic
- -01:00 - extended
- -0100 - sign character (-) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the west of the zero meridian.
- November - Military abbreviation for WGST
- N - short form of 'November'
- EGT - East Greenland Time
- WGST - Western Greenland Summer Time
- AZOT - Azores Time
- CVT - Cape Verde Time
- N - November Time Zone