Convert CET to GMT
CET
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GMT
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GMT is 1 hour behind CET all year, because both zones change their clocks on the same dates. CET is Central European Time, CET at UTC+1 in winter and CEST at UTC+2 in summer. 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.
CET to GMT at a glance
| CET | GMT, all year |
|---|---|
| 00:00 | 23:00 -1d |
| 06:00 | 05:00 |
| 09:00 | 08:00 |
| 12:00 | 11:00 |
| 15:00 | 14:00 |
| 18:00 | 17:00 |
| 21:00 | 20:00 |
In 2026, clocks in both zones change on 29 March and 25 October.
Common questions
- What is the time difference between CET and GMT?
- GMT is 1 hour behind CET all year, because both zones change their clocks on the same dates. The table on this page lists common CET 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 CET, so you can compare at a glance. The gap is the same whatever the date, so the reading never needs adjusting.
- How do I convert a specific CET time to GMT?
- Type the CET time into the box and the panel shows the same moment in GMT. For example, 09:00 in CET on 1 June 2026 is 08:00 the same day in GMT. A time with no zone is read as CET 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 CET to GMT difference change with daylight saving time?
- Not in practice. Both zones change their clocks at the same moment, on 29 March and 25 October in 2026, so the gap holds at 1 hour all year.