GMT Time Now
Greenwich Mean Time (GMT)
UTC+0:00 · No Daylight Saving Time
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Europe/London
GMT Timezone Details
| Abbreviation | GMT |
| Full name | Greenwich Mean Time |
| UTC Offset | UTC+0:00 |
| Daylight Saving Time | No |
| IANA Timezone ID | Europe/London |
| Countries / Regions | United Kingdom (winter), Ireland (winter), Portugal (winter), Iceland (year-round), Ghana, Senegal |
Convert GMT to Other Timezones
Live — updates every second
| UTC | --:--:-- |
| New York (EST/EDT) | --:--:-- |
| Dubai (GST) | --:--:-- |
| Tokyo (JST) | --:--:-- |
| Sydney (AEST) | --:--:-- |
| Beijing (CST) | --:--:-- |
| India (IST) | --:--:-- |
About GMT — Greenwich Mean Time
Greenwich Mean Time (GMT) is the time standard at the Royal Observatory in Greenwich, London. GMT is UTC+0—the zero baseline from which all other timezones are measured. GMT was established at the International Meridian Conference in 1884.
The United Kingdom uses GMT in winter (late October to late March) and switches to British Summer Time (BST, UTC+1) in summer. GMT and UTC are often used interchangeably, though they differ slightly: UTC is an atomic time standard, while GMT is an astronomical time standard.
Major cities in the GMT timezone:
London Dublin Lisbon (winter) Reykjavik Accra Dakar
Frequently Asked Questions About GMT
What time is it in GMT right now? +
The current GMT (Greenwich Mean Time) time is shown in the live clock above. GMT is UTC+0:00 year-round, with no Daylight Saving Time.
What does GMT stand for? +
GMT stands for Greenwich Mean Time. It is UTC+0:00 and does not observe Daylight Saving Time.
Which countries use GMT? +
GMT (Greenwich Mean Time) is used in: United Kingdom (winter), Ireland (winter), Portugal (winter), Iceland (year-round), Ghana, Senegal.
Does GMT observe Daylight Saving Time? +
No, GMT (Greenwich Mean Time) does not observe Daylight Saving Time. The time stays at UTC+0:00 year-round.
What is the UTC offset for GMT? +
The UTC offset for GMT is UTC+0:00 (constant, year-round).
What is GMT time right now? +
GMT (Greenwich Mean Time) is UTC+0—the current UTC time is the same as GMT. You can see the current GMT time in the live clock above.
What is the difference between GMT and UTC? +
GMT (Greenwich Mean Time) is a timezone while UTC (Coordinated Universal Time) is a time standard. They share the same numeric value (UTC+0/GMT+0) but differ in precision. UTC is based on atomic clocks and is slightly more accurate. In practice, GMT and UTC are used interchangeably.
Which countries use GMT? +
GMT is used year-round by Iceland, Ghana, Senegal, and several other African nations. The UK, Ireland, and Portugal use GMT in winter, switching to UTC+1 in summer.
London
Paris
Berlin
Madrid
Rome
Vienna
Prague
Warsaw
Amsterdam
Bratislava
Budapest
Moscow
Oslo
Stockholm
Helsinki
Lisbon