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 when both zones are on standard time, and 2 hours behind during the summer months when clocks have shifted. CET is UTC+1 (CEST: UTC+2); GMT is UTC+0.
CET covers Paris, Berlin, Madrid; GMT covers Accra, Dakar, London in winter. Because only CET observes daylight saving time, 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
No daylight saving time
CET to GMT conversion table (standard time)
| 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 |
CET to GMT during daylight saving
Between the dates listed above, the difference is 2 hours instead of 1 hour.
| CET/CEST | GMT |
|---|---|
| 12 am | 10 pmprevious day |
| 3 am | 1 am |
| 6 am | 4 am |
| 8 am | 6 am |
| 9 am | 7 am |
| 10 am | 8 am |
| 11 am | 9 am |
| 12 pm | 10 am |
| 1 pm | 11 am |
| 2 pm | 12 pm |
| 3 pm | 1 pm |
| 4 pm | 2 pm |
| 5 pm | 3 pm |
| 6 pm | 4 pm |
| 8 pm | 6 pm |
| 10 pm | 8 pm |
Frequently asked questions
What is the time difference between CET and GMT?
GMT is 1 hour behind CET on standard time. During daylight saving the gap changes to 2 hours. That comes from the UTC offsets: CET is UTC+1 and GMT is UTC+0. For example, 9 am CET = 8 am GMT, and in summer 9 am CET = 7 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 keeps UTC+0 all year. 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 Accra, Dakar, London in winter. Note that the United Kingdom is only on GMT in winter; from late March to late October London runs on British Summer Time, one hour ahead, so use the BST pages for UK business hours in summer.