Greenwich Mean / British Summer Time (GMT/BST)

London is UTC+00:00 in winter (GMT) and UTC+01:00 in summer (BST); GMT and UTC coincide but are defined differently. Major locations: London, Dublin.

UTC → GMT/BST examples

UTCGMT/BST
Tue, 14 Nov 2023, 00:00:00 UTCTue, 14 Nov 2023, 00:00:00 GMT
Tue, 14 Nov 2023, 06:00:00 UTCTue, 14 Nov 2023, 06:00:00 GMT
Tue, 14 Nov 2023, 12:00:00 UTCTue, 14 Nov 2023, 12:00:00 GMT
Tue, 14 Nov 2023, 18:00:00 UTCTue, 14 Nov 2023, 18:00:00 GMT

Frequently asked questions

What is the UTC offset of GMT/BST?
Greenwich Mean / British Summer Time (GMT/BST) is UTC+00:00 in standard time and shifts by one hour during daylight saving.
Does GMT/BST observe daylight saving time?
Yes. London, Dublin shifts its clocks for daylight saving, so the UTC offset changes between summer and winter.
How do I convert UTC to GMT/BST?
Add the GMT/BST offset (UTC+00:00) to the UTC time. The converter on this page does it instantly, including the current daylight-saving state.

Other time zones

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