This CET to GMT converter turns any time in Central European Time (CET) into Greenwich Mean Time (GMT), using your device clock so daylight saving is applied automatically. GMT is 1 hour behind CET. CET is UTC+1 (CEST: UTC+2); GMT is UTC+0 (BST: UTC+1).
CET covers Paris, Berlin, Madrid; GMT covers London, Edinburgh, Dublin (IST). Because both zones change their clocks on different dates, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
CET and GMT UTC offsets
CET
UTC+1
Central European Time
CEST UTC+2 from March 29 to October 25, 2026
GMT
UTC+0
Greenwich Mean Time
BST UTC+1 from March 29 to October 25, 2026
CET to GMT conversion table
| CET | GMT |
|---|---|
| 12 am | 11 pmprevious day |
| 3 am | 2 am |
| 6 am | 5 am |
| 8 am | 7 am |
| 9 am | 8 am |
| 10 am | 9 am |
| 11 am | 10 am |
| 12 pm | 11 am |
| 1 pm | 12 pm |
| 2 pm | 1 pm |
| 3 pm | 2 pm |
| 4 pm | 3 pm |
| 5 pm | 4 pm |
| 6 pm | 5 pm |
| 8 pm | 7 pm |
| 10 pm | 9 pm |
Frequently asked questions
What is the time difference between CET and GMT?
GMT is 1 hour behind CET. That comes from the UTC offsets: CET is UTC+1 and GMT is UTC+0. For example, 9 am CET = 8 am GMT.
Is GMT ahead of or behind CET?
GMT is 1 hour behind CET, so when it is noon in CET it is 11 am in GMT. Ahead means the clock there already shows a later time; a call at 5 pm CET lands at 4 pm GMT.
Does CET or GMT observe daylight saving time in 2026?
CET switches to CEST (UTC+2) on March 29 and back on October 25 in 2026. GMT switches to BST (UTC+1) on March 29 and back on October 25. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between CET and GMT?
Standard office hours (9 am to 5 pm) overlap from 10 am to 5 pm CET, which is 9 am to 4 pm GMT. Pick a slot inside that window and both sides stay within a normal working day. Check the daylight saving dates above, because the window moves by an hour when only one side has changed clocks.
Which cities use CET and GMT?
CET (Central European Time) is used in Paris, Berlin, Madrid, Rome, Amsterdam. GMT (Greenwich Mean Time) is used in London, Edinburgh, Dublin (IST). Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.