GMT: Greenwich Mean Time
Saturday, 31 October 2026
GMT (UTC) is the standard time in the United Kingdom, Ghana, Ivory Coast and 17 other countries and territories. It is in use now; on 28 March 2027 clocks go forward to BST (UTC+1).
In the other half of the year: BST, British Summer Time
Where GMT is used
Largest cities on GMT
GMT and other time zones
| Time zone | UTC offset | Time now | Difference from GMT |
|---|---|---|---|
| UTC Coordinated Universal Time · UTC | UTC | same time | |
| CET Central European Time · UTC+1 | UTC+1 | +1 hour | |
| EET Eastern European Time · UTC+2 | UTC+2 | +2 hours | |
| MSK Moscow Time · UTC+3 | UTC+3 | +3 hours | |
| GST Gulf Standard Time · UTC+4 | UTC+4 | +4 hours | |
| IST India Standard Time · UTC+5:30 | UTC+5:30 | +5.5 hours | |
| ICT Indochina Time · UTC+7 | UTC+7 | +7 hours | |
| CST Central Standard Time · UTC-6 | UTC-6 | −6 hours | |
| JST Japan Standard Time · UTC+9 | UTC+9 | +9 hours | |
| AEST Australian Eastern Standard Time · UTC+10 | UTC+10 | +10 hours | |
| NZST New Zealand Standard Time · UTC+12 | UTC+12 | +12 hours | |
| EST Eastern Standard Time · UTC-5 | UTC-5 | −5 hours | |
| MST Mountain Standard Time · UTC-7 | UTC-7 | −7 hours | |
| PST Pacific Standard Time · UTC-8 | UTC-8 | −8 hours | |
| HST Hawaii-Aleutian Standard Time · UTC-10 | UTC-10 | −10 hours |
Frequently asked questions
What is GMT?
GMT stands for Greenwich Mean Time, UTC.
Which countries use GMT?
UK, Ghana, Ivory Coast, Mali, Burkina Faso, Senegal, Guinea, Sierra Leone, Togo, Liberia, Ireland, Mauritania, Gambia, Guinea-Bissau, Iceland, São Tomé and Príncipe, Jersey, Isle of Man, Guernsey, Saint Helena.
What is the difference between GMT and BST?
GMT (UTC) is the standard time, used in winter. BST (UTC+1) is the daylight saving time, one hour ahead, used in summer.