UTC to GMT Converter
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.
Iceland and Ghana stay on GMT (UTC+0).
Quick answers
Selected conversion
12:00 pm12:00 UTC (UTC+0), Oct 10, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 10, 2026
UTC and GMT have the same local time.
UTC and GMT examples
These examples always use UTC (UTC+0) and GMT (UTC+0). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
UTC and GMT have the same local time.
Popular UTC to GMT conversions
| UTC | UTC 24-hour | GMT | GMT 24-hour |
|---|---|---|---|
| 9:00 am | 09:00 | 9:00 am | 09:00 |
| 3:00 pm | 15:00 | 3:00 pm | 15:00 |
How the time difference changes
UTC and GMT have the same time year-round.
Working hours of 9:00 am to 5:00 pm in UTC correspond to 9:00 am to 5:00 pm in GMT.Working hours of 09:00 to 17:00 in UTC correspond to 09:00 to 17:00 in GMT.
Compare UTC time with GMT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Universal Time Coordinated and Greenwich Mean Time have the same local time.
12:00 pm12:00 in UTC is 12:00 pm12:00 in GMT
UTC to GMT call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in UTC which corresponds to 9am-5pm09:00-17:00 in GMT
12:00 pm12:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
12:00 pm12:00 UTC / 12:00 pm12:00 GMT
| UTC | GMT |
|---|---|
| 12:00am | 12:00am |
| 1:00am | 1:00am |
| 2:00am | 2:00am |
| 3:00am | 3:00am |
| 4:00am | 4:00am |
| 5:00am | 5:00am |
| 6:00am | 6:00am |
| 7:00am | 7:00am |
| 8:00am | 8:00am |
| 9:00am | 9:00am |
| 10:00am | 10:00am |
| 11:00am | 11:00am |
| 12:00pm | 12:00pm |
| 1:00pm | 1:00pm |
| 2:00pm | 2:00pm |
| 3:00pm | 3:00pm |
| 4:00pm | 4:00pm |
| 5:00pm | 5:00pm |
| 6:00pm | 6:00pm |
| 7:00pm | 7:00pm |
| 8:00pm | 8:00pm |
| 9:00pm | 9:00pm |
| 10:00pm | 10:00pm |
| 11:00pm | 11:00pm |
| 00:00 | 00:00 |
| 01:00 | 01:00 |
| 02:00 | 02:00 |
| 03:00 | 03:00 |
| 04:00 | 04:00 |
| 05:00 | 05:00 |
| 06:00 | 06:00 |
| 07:00 | 07:00 |
| 08:00 | 08:00 |
| 09:00 | 09:00 |
| 10:00 | 10:00 |
| 11:00 | 11:00 |
| 12:00 | 12:00 |
| 13:00 | 13:00 |
| 14:00 | 14:00 |
| 15:00 | 15:00 |
| 16:00 | 16:00 |
| 17:00 | 17:00 |
| 18:00 | 18:00 |
| 19:00 | 19:00 |
| 20:00 | 20:00 |
| 21:00 | 21:00 |
| 22:00 | 22:00 |
| 23:00 | 23:00 |
Universal Time Coordinated
Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.
UTC 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 UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- 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
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 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Dakar, Kumasi.
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