This GMT to CET converter turns any time in Greenwich Mean Time (GMT) into Central European Time (CET), using your device clock so daylight saving is applied automatically. CET is 1 hour ahead of GMT. GMT is UTC+0 (BST: UTC+1); CET is UTC+1 (CEST: UTC+2).
GMT covers London, Edinburgh, Dublin (IST); CET covers Paris, Berlin, Madrid. 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.
GMT and CET UTC offsets
GMT
UTC+0
Greenwich Mean Time
BST UTC+1 from March 29 to October 25, 2026
CET
UTC+1
Central European Time
CEST UTC+2 from March 29 to October 25, 2026
GMT to CET conversion table
| GMT | CET |
|---|---|
| 12 am | 1 am |
| 3 am | 4 am |
| 6 am | 7 am |
| 8 am | 9 am |
| 9 am | 10 am |
| 10 am | 11 am |
| 11 am | 12 pm |
| 12 pm | 1 pm |
| 1 pm | 2 pm |
| 2 pm | 3 pm |
| 3 pm | 4 pm |
| 4 pm | 5 pm |
| 5 pm | 6 pm |
| 6 pm | 7 pm |
| 8 pm | 9 pm |
| 10 pm | 11 pm |
Frequently asked questions
What is the time difference between GMT and CET?
CET is 1 hour ahead of GMT. That comes from the UTC offsets: GMT is UTC+0 and CET is UTC+1. For example, 9 am GMT = 10 am CET.
Is CET ahead of or behind GMT?
CET is 1 hour ahead of GMT, so when it is noon in GMT it is 1 pm in CET. Ahead means the clock there already shows a later time; a call at 5 pm GMT lands at 6 pm CET.
Does GMT or CET observe daylight saving time in 2026?
GMT switches to BST (UTC+1) on March 29 and back on October 25 in 2026. CET switches to CEST (UTC+2) 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 GMT and CET?
Standard office hours (9 am to 5 pm) overlap from 9 am to 4 pm GMT, which is 10 am to 5 pm CET. 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 GMT and CET?
GMT (Greenwich Mean Time) is used in London, Edinburgh, Dublin (IST). CET (Central European Time) is used in Paris, Berlin, Madrid, Rome, Amsterdam. Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.