World Time Labv2026.7.5
Explore World Time Lab
About & data

CET to GMT: convert Central European Time to Greenwich Mean Time

In January, GMT is 1 hour behind CET. In July it is 2 hours behind. The gap moves because the two regions handle daylight saving differently.

One instant, two local clocks

Drag one day across both zones

Shared instant12:00 UTC
Difference nowGMT is 1 hour behind
CETCentral European Time
13:00Thu, Jan 15
GMTGreenwich Mean Time
12:00Thu, Jan 15
Approximate daylight 09:00 to 17:00 Selected local time

Both lanes show the same instant. Local dates, daylight, and offsets come from each IANA zone on the selected date, so daylight saving changes are included.

Right now

CET: Central European Time

--:--:--

 

 

 

GMT: Greenwich Mean Time

--:--:--

 

 

 

Local times come from your browser's IANA time zone data.

CET to GMT hour by hour

Two columns because the gap changes with daylight saving: use the January column roughly November to mid-March, the July column mid-March to October. Exact switch dates vary by year.

CETGMT (January)GMT (July)
12:00 AM11:00 PM (prev day)10:00 PM (prev day)
1:00 AM12:00 AM11:00 PM (prev day)
2:00 AM1:00 AM12:00 AM
3:00 AM2:00 AM1:00 AM
4:00 AM3:00 AM2:00 AM
5:00 AM4:00 AM3:00 AM
6:00 AM5:00 AM4:00 AM
7:00 AM6:00 AM5:00 AM
8:00 AM7:00 AM6:00 AM
9:00 AM8:00 AM7:00 AM
10:00 AM9:00 AM8:00 AM
11:00 AM10:00 AM9:00 AM
12:00 PM11:00 AM10:00 AM
1:00 PM12:00 PM11:00 AM
2:00 PM1:00 PM12:00 PM
3:00 PM2:00 PM1:00 PM
4:00 PM3:00 PM2:00 PM
5:00 PM4:00 PM3:00 PM
6:00 PM5:00 PM4:00 PM
7:00 PM6:00 PM5:00 PM
8:00 PM7:00 PM6:00 PM
9:00 PM8:00 PM7:00 PM
10:00 PM9:00 PM8:00 PM
11:00 PM10:00 PM9:00 PM

Scheduling a call between CET and GMT

Standard business hours (9:00 AM to 5:00 PM) overlap in January from 10:00 AM to 5:00 PM in CET, which is 9:00 AM to 4:00 PM in GMT.

In July the overlap runs 11:00 AM to 5:00 PM in CET (9:00 AM to 3:00 PM in GMT).

GMT to CET (reverse)Open the full converter

More CET conversions

Offsets are computed from the IANA time zone database for January 15 and July 15 of the current year. CET here means Central European Time (most of continental Europe); GMT means Greenwich Mean Time (fixed UTC+0 offset, all year).