WAT to GMT to MST
Compare WAT time with GMT and MST 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 and 8 hours ahead of Mountain Standard Time
1:00 pm13:00 in WAT is 12:00 pm12:00 in GMT and is 5:00 am05:00 in MST
WAT to GMT call time
Best time for a conference call or a meeting is between 10am-5pm in WAT which corresponds to 9am-4pm in GMT
WAT to MST call time
Best time for a conference call or a meeting is between 4:30pm-5:30pm in WAT which corresponds to 8:30am-9:30am in MST
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
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
1:00 pm13:00 WAT / 12:00 pm12:00 GMT / 5:00 am05:00 MST
| WAT | GMT | MST |
|---|---|---|
| 12am (midnight) | 11pm | 4pm |
| 1am | 12am (midnight) | 5pm |
| 2am | 1am | 6pm |
| 3am | 2am | 7pm |
| 4am | 3am | 8pm |
| 5am | 4am | 9pm |
| 6am | 5am | 10pm |
| 7am | 6am | 11pm |
| 8am | 7am | 12am (midnight) |
| 9am | 8am | 1am |
| 10am | 9am | 2am |
| 11am | 10am | 3am |
| 12pm (noon) | 11am | 4am |
| 1pm | 12pm (noon) | 5am |
| 2pm | 1pm | 6am |
| 3pm | 2pm | 7am |
| 4pm | 3pm | 8am |
| 5pm | 4pm | 9am |
| 6pm | 5pm | 10am |
| 7pm | 6pm | 11am |
| 8pm | 7pm | 12pm (noon) |
| 9pm | 8pm | 1pm |
| 10pm | 9pm | 2pm |
| 11pm | 10pm | 3pm |
| 00:00 | 23:00 | 16:00 |
| 01:00 | 00:00 | 17:00 |
| 02:00 | 01:00 | 18:00 |
| 03:00 | 02:00 | 19:00 |
| 04:00 | 03:00 | 20:00 |
| 05:00 | 04:00 | 21:00 |
| 06:00 | 05:00 | 22:00 |
| 07:00 | 06:00 | 23:00 |
| 08:00 | 07:00 | 00:00 |
| 09:00 | 08:00 | 01:00 |
| 10:00 | 09:00 | 02:00 |
| 11:00 | 10:00 | 03:00 |
| 12:00 | 11:00 | 04:00 |
| 13:00 | 12:00 | 05:00 |
| 14:00 | 13:00 | 06:00 |
| 15:00 | 14:00 | 07:00 |
| 16:00 | 15:00 | 08:00 |
| 17:00 | 16:00 | 09:00 |
| 18:00 | 17:00 | 10:00 |
| 19:00 | 18:00 | 11:00 |
| 20:00 | 19:00 | 12:00 |
| 21:00 | 20:00 | 13:00 |
| 22:00 | 21:00 | 14:00 |
| 23:00 | 22:00 | 15:00 |
West Africa Time
Offset: WAT is 1 hour ahead Greenwich Mean Time (GMT) and is used in Africa
Countries using this time zone: Angola, Benin, Congo (Dem. Rep.), Central African Rep., Congo (Rep.), Cameroon, Gabon, Equatorial Guinea, Niger, Nigeria, Chad
Principal Cities: The largest city in the WAT time zone is Lagos in Nigeria, with about 9 million people. Other major cities in this time zone include Kinshasa, 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.
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
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo
Principal Cities: The largest city in the GMT time zone is London in United Kingdom, with about 7.557 million people. Other major cities in this time zone include Abidjan, Dakar, Grand Dakar, Accra.
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 for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
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 - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Mountain Standard Time
Offset: MST is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the MST time zone is Phoenix in the United States, with about 1.446 million people. Other major cities in this time zone include Calgary, Edmonton, El Paso, Denver.
French: HNR - Heure Normale des Rocheuses
Spanish: MT - Zona Pacífico
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Mountain Daylight Time (MDT).
Start: Mountain Standard Time (MST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.
End: Mountain Standard Time (MST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.
MST representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Creston
- America/Dawson
- America/Dawson_Creek
- America/Denver
- America/Edmonton
- America/Fort_Nelson
- America/Hermosillo
- America/Inuvik
- America/Mazatlan
- America/Phoenix
- America/Shiprock
- America/Whitehorse
- America/Yellowknife
- Canada/Mountain
- Canada/Yukon
- MST
- MST7MDT
- Mexico/BajaSur
- Navajo
- US/Arizona
- US/Mountain
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone