WAT to BST Converter
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Add one or more places to compare local times, adjust the date, and share the result.
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Selected conversion
1:00 pm13:00 WAT (UTC+1), Nov 5, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 5, 2026
WAT is 1 hour ahead of GMT.
WAT and BST examples
These examples always use WAT (UTC+1) 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.
WAT and BST have the same local time.
How the time difference changes
For most of the year, WAT and BST have the same time. From Oct 25, 2026 to Mar 28, 2027, and from Oct 31, 2027 to Mar 26, 2028, WAT is 1 hour ahead of GMT.
For most of the year, working hours of 9:00 am to 6:00 pm in WAT correspond to 9:00 am to 6:00 pm in BST. At other times of the year, working hours of 9:00 am to 6:00 pm in WAT correspond to 8:00 am to 5:00 pm in GMT.For most of the year, working hours of 09:00 to 18:00 in WAT correspond to 09:00 to 18:00 in BST. At other times of the year, working hours of 09:00 to 18:00 in WAT correspond to 08:00 to 17:00 in GMT.
Compare WAT time with BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
West Africa Time is 1 hour ahead of Greenwich Mean Time.
1:00 pm13:00 in WAT is 12:00 pm12:00 in GMT
WAT to GMT call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in WAT which corresponds to 9am-5pm09:00-17:00 in GMT
1:00 pm13:00 West Africa Time (WAT). Offset UTC +1:00 hour
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
1:00 pm13:00 WAT / 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.
| WAT | GMT |
|---|---|
| 11:00pm previous day | |
| 12:00am | |
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| 4:00am | |
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| 6:00am | |
| 7:00am | |
| 8:00am | |
| 9:00am | |
| 10:00am | |
| 11:00am | |
| 12:00pm | |
| 1:00pm | |
| 2:00pm | |
| 3:00pm | |
| 4:00pm | |
| 5:00pm | |
| 6:00pm | |
| 7:00pm | |
| 8:00pm | |
| 9:00pm | |
| 10:00pm | |
| 23:00 previous day | |
| 00:00 | |
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| 07:00 | |
| 08:00 | |
| 09:00 | |
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| 22:00 |
West Africa Time
Offset: WAT is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Angola, Benin, Cameroon, Central African Republic, Chad, Democratic Republic of the Congo, Equatorial Guinea, Gabon, Niger, Nigeria, Republic of the Congo
Principal Cities: The largest city in the WAT time zone is Kinshasa in the Democratic Republic of the Congo, with about 16 million people. Other major cities in this time zone include Lagos, Kano, Ibadan, Luanda.
Daylight Saving: Clocks in West Africa Time (WAT) do not change for daylight saving time, so WAT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
WAT 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 east of the zero meridian.
- Alpha - Military abbreviation for WAT
- A - short form of 'Alpha'
- Africa/Bangui
- Africa/Brazzaville
- Africa/Douala
- Africa/Kinshasa
- Africa/Lagos
- Africa/Libreville
- Africa/Luanda
- Africa/Malabo
- Africa/Ndjamena
- Africa/Niamey
- Africa/Porto-Novo
- 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
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
Today the shaded areas are on UTC+0 (GMT).
BST 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 east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- 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