Convert UTC to GMT
UTC
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GMT
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GMT is level with UTC in winter and 1 hour ahead, as BST, in summer. UTC is Coordinated Universal Time, the UTC+0 reference every other zone is measured from. GMT is London time, GMT at UTC+0 in winter and BST at UTC+1 in summer. Paste a Unix timestamp, an ISO 8601 string or a plain date such as June 1 2026 3:00 pm and the converter shows that moment in both zones, with UTC and Unix time alongside.
UTC to GMT at a glance
| UTC | Winter (GMT) | Summer (BST) |
|---|---|---|
| 00:00 | 00:00 | 01:00 |
| 06:00 | 06:00 | 07:00 |
| 09:00 | 09:00 | 10:00 |
| 12:00 | 12:00 | 13:00 |
| 15:00 | 15:00 | 16:00 |
| 18:00 | 18:00 | 19:00 |
| 21:00 | 21:00 | 22:00 |
In 2026, clocks in London change on 29 March and 25 October. UTC does not change.
Common questions
- What is the time difference between UTC and GMT?
- GMT is level with UTC in winter and 1 hour ahead, as BST, in summer. The table on this page lists common UTC hours with their GMT equivalents, and the converter gives the exact gap for any date you enter.
- What time is it in GMT right now?
- The GMT panel at the top of the page shows the current local time there, next to UTC, so you can compare at a glance. The offset line under it reports the gap for this moment, so you do not have to work out which side of a clock change you are on.
- How do I convert a specific UTC time to GMT?
- Type the UTC time into the box and the panel shows the same moment in GMT. For example, 09:00 in UTC on 1 June 2026 is 10:00 the same day in GMT. A time with no zone is read as UTC on this page; the selector under the box switches that to GMT or to your own zone, and a Unix number or an ISO 8601 string with an offset is always read as written.
- Does the UTC to GMT difference change with daylight saving time?
- Yes, twice. London moves its clocks on 29 March and 25 October in 2026, while UTC stays at UTC+0 all year, so the gap changes by an hour on each of those dates. parsetime computes the offset for the exact instant you enter, so the days around a change come out right as well.