GMT Time Now
The current Greenwich Mean Time (GMT) time is . Greenwich Mean Time is the historic time standard measured from the Royal Observatory in Greenwich, London. In modern use GMT and UTC show the same clock time; the UK itself uses GMT in winter and BST in summer.
Major cities in this zone
- London (winter)
- Dublin (winter)
- Lisbon (winter)
- Reykjavik
Convert GMT to other zones
Open the time zone converter with GMT pre-selected, or see the world clock for live times everywhere.
Frequently asked questions
What time is it in GMT right now?
The live clock above shows current Greenwich Mean Time. GMT stays fixed at UTC+0 all year — it is the winter time of the UK, not a daylight-saving zone itself.
Are GMT and UTC the same?
On a clock, yes — they read the same time. UTC is the modern atomic standard; GMT is the historic name tied to the Greenwich meridian. You can use them interchangeably for civil time.
Does London use GMT all year?
No. London uses GMT (UTC+0) in winter and British Summer Time, BST (UTC+1), from the last Sunday of March to the last Sunday of October.
Which countries use GMT?
Countries on GMT year-round include Iceland, Ghana, and several West African nations. The UK, Ireland and Portugal use GMT in winter and move to summer time (UTC+1) in summer.