GMT to CET Time Converter
Convert Greenwich Mean Time to Central European Time instantly.
Scroll the timeline to check any hour of the day.
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How the GMT to CET time difference works
CET is 1 hour ahead of GMT. Greenwich Mean Time (GMT) is the time zone of the United Kingdom and Ireland.
Central European Time (CET) is used across much of central and western Europe.
For example, 9:00 AM GMT is 10:00 AM CET.
Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Daylight saving
Both observe
GMT to CET conversion chart
| Greenwich Mean Time (GMT) |
Central European Time (CET) |
| 12:00 AM |
1:00 AM |
| 1:00 AM |
2:00 AM |
| 2:00 AM |
3:00 AM |
| 3:00 AM |
4:00 AM |
| 4:00 AM |
5:00 AM |
| 5:00 AM |
6:00 AM |
| 6:00 AM |
7:00 AM |
| 7:00 AM |
8:00 AM |
| 8:00 AM |
9:00 AM |
| 9:00 AM |
10:00 AM |
| 10:00 AM |
11:00 AM |
| 11:00 AM |
12:00 PM |
| 12:00 PM |
1:00 PM |
| 1:00 PM |
2:00 PM |
| 2:00 PM |
3:00 PM |
| 3:00 PM |
4:00 PM |
| 4:00 PM |
5:00 PM |
| 5:00 PM |
6:00 PM |
| 6:00 PM |
7:00 PM |
| 7:00 PM |
8:00 PM |
| 8:00 PM |
9:00 PM |
| 9:00 PM |
10:00 PM |
| 10:00 PM |
11:00 PM |
| 11:00 PM |
12:00 AM +1 day |
Best time to meet
A standard 9 to 5 workday overlaps from 9:00 AM to 4:00 PM GMT (10:00 AM to 5:00 PM CET). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
Central European Time (CET)
ParisBerlinMadridRomeAmsterdamWarsaw
GMT to CET questions
Is CET ahead of or behind GMT?
CET is 1 hour ahead of GMT. So 9:00 AM GMT is 10:00 AM CET, and 5:00 PM GMT is 6:00 PM CET.
What time is it in CET when it is 12:00 PM GMT?
When it is 12:00 PM (noon) GMT in Greenwich Mean Time, it is 1:00 PM CET in Central European Time.
How many hours difference is there between GMT and CET?
There is a 1 hour difference. Central European Time (CET) runs 1 hour ahead of Greenwich Mean Time (GMT).
Do GMT and CET observe daylight saving time?
Both Greenwich Mean Time and Central European Time observe daylight saving time on aligned dates, so the 1 hour difference between them holds all year.
What is the best time to schedule a meeting between GMT and CET?
A standard 9-to-5 workday overlaps from 9:00 AM to 4:00 PM GMT (10:00 AM to 5:00 PM CET). Scheduling inside that window keeps the call during business hours in both Greenwich Mean Time and Central European Time.
Which cities use GMT and CET?
Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester. Central European Time (CET) covers cities such as Paris, Berlin, Madrid, Rome, Amsterdam, Warsaw.
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