GMT time now
Greenwich Mean Time: UTC±0 all year, with no daylight saving time.
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IANA zone Etc/GMT. Time from your device clock, converted with your browser's copy of the tz database.
About GMT
Greenwich Mean Time is the clock time in UTC+0, as used in the UK in winter and in West Africa.GMT here means the fixed UTC+0 offset. The UK only uses GMT in winter; in summer London is on BST (UTC+1).
Clock changes
Greenwich Mean Time does not change its clocks in 2026 or 2027. It stays on UTC±0 all year (GMT).
Questions
What is the UTC offset of GMT?
Greenwich Mean Time is UTC±0 all year, with no daylight saving time.
Where is GMT used?
UTC+0, as used in the UK in winter and in West Africa. IANA zone Etc/GMT.
Does GMT mean anything else?
GMT here means the fixed UTC+0 offset. The UK only uses GMT in winter; in summer London is on BST (UTC+1).