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WT
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GMT/BST
UTC+0
same time
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The United Kingdom is on standard time: GMT (UTC+0) until Sun, Mar 28, 2027.

Quick answers

Selected conversion

12:00 pm12:00 WT (UTC+0), Oct 27, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 27, 2026

WT and GMT have the same local time.

WT and BST examples

These examples always use WT (UTC+0) and BST (UTC+1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

WT is 1 hour behind BST.

How the time difference changes

During 2026, the difference changes: WST and BST have the same time, WT and GMT have the same time, WST is 1 hour ahead of GMT, and WT is 1 hour behind BST.

During 2026, working-hour overlap changes: working hours of 9:00 am to 6:00 pm in WST correspond to 9:00 am to 6:00 pm in BST, working hours of 9:00 am to 6:00 pm in WT correspond to 9:00 am to 6:00 pm in GMT, working hours of 9:00 am to 6:00 pm in WST correspond to 8:00 am to 5:00 pm in GMT, and working hours of 9:00 am to 6:00 pm in WT correspond to 10:00 am to 7:00 pm in BST.During 2026, working-hour overlap changes: working hours of 09:00 to 18:00 in WST correspond to 09:00 to 18:00 in BST, working hours of 09:00 to 18:00 in WT correspond to 09:00 to 18:00 in GMT, working hours of 09:00 to 18:00 in WST correspond to 08:00 to 17:00 in GMT, and working hours of 09:00 to 18:00 in WT correspond to 10:00 to 19:00 in BST.

Compare WT time with BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Western Sahara Standard Time and Greenwich Mean Time have the same local time.
12:00 pm12:00 in WT is 12:00 pm12:00 in GMT

WT to GMT call time
Best time for a conference call or a meeting is between 9am-6pm09:00-18:00 in WT which corresponds to 9am-6pm09:00-18:00 in GMT

12:00 pm12:00 Western Sahara Standard Time (WT). Offset UTC 0:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

12:00 pm12:00 WT / 12:00 pm12:00 GMT

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.

Hourly time comparison
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Western Sahara Standard Time

Offset: WT is the same as Greenwich Mean Time (GMT).

Countries using this time zone: Western Sahara

Principal Cities: The largest city in the WT time zone is Laayoune in Western Sahara, with about 196,331 people. Other major cities in this time zone include Dakhla, Boujdour, El Marsa, Meharrize.

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.

WT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for WT
  • Z - short form of 'Zulu'
Time zones with the GMT +0 offset:
  • 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

British Summer Time

Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom

Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.

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.

Current time in the United Kingdom: UK time now

Map of the areas on British Summer Time (BST)
BST part of the year

Today the shaded areas are on UTC+0 (GMT).

BST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for BST
  • A - short form of 'Alpha'
IANA/Olson: Reflects BST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Europe/Belfast
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
BST Abbreviation: Several time zones share BST abbreviation and it could refer to these time zones
  • British Summer Time - UTC +1
  • Bangladesh Standard Time - UTC +6
  • Bougainville Standard Time - UTC +11
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time