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CET to GMT Time Converter

Use this CET to GMT time converter to compare Central Europe and United Kingdom time instantly. GMT is 1 hour behind CET, so 9:00 AM CET becomes 8:00 AM GMT and 5:00 PM CET becomes 4:00 PM GMT. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.

CET Central European Time
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GMT Greenwich Mean Time
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Select a time to convert

CET to GMT Quick Facts

Use this CET to GMT converter to compare Central Europe and United Kingdom time, check the 1 hour gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 10:00 AM CET / 9:00 AM GMT.

Time Difference
Greenwich Mean Time is 1 hour behind Central European Time
Useful when deadlines, handoffs, or calls cross workday boundaries.
Best Call Window
Best overlap starts around 10:00 AM CET and 9:00 AM GMT.
Common Use Cases
Useful for remote teams, customer support windows, travel planning, webinars, and same-day deadline handoffs.

How to Convert CET to GMT

Converting between Central European Time and Greenwich Mean Time means accounting for a 1 hour gap — here's how to do it in under 10 seconds with no sign-up.

Enter Your CET Time

Pick the date and time in Central European Time (UTC +1) that you want to convert. Hit "Now" to load the current CET time instantly, or use "+1h" to step forward and compare.

Read the GMT Result

The equivalent Greenwich Mean Time (UTC +0) time appears immediately. Since GMT is 1 hour behind of CET, most daytime conversions stay on the same calendar day.

Copy or Fine-Tune

Click "Copy Time" to grab the GMT result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.

Why Choose Our CET to GMT Converter

Align CET–GMT Meetings Instantly

When someone in Central Europe suggests 10:00 AM CET, that's 9:00 AM GMT. This converter shows the overlap so both sides agree on one slot — no back-and-forth.

Spot Date-Line Shifts at a Glance

Late-night CET times can land on a different date in GMT because of the 1 hour offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.

Handles DST Transitions Automatically

Daylight Saving adjustments can widen or narrow the CET–GMT gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.

Never Miss a CET-Timed Event

Product launches, sports matches, and webinars are often announced in CET. Convert the event time to GMT so you know exactly when to tune in — with a 1 hour difference, a morning event in Central Europe falls during work hours in Universal.

CET to GMT Time Conversion Chart

Quick-reference conversion table covering every hour of the day at a glance.

Complete 24-Hour Conversion

Central European Time to Greenwich Mean Time full day schedule

12:00 AM
CET
→
11:00 PM
GMT
(previous day)
1:00 AM
CET
→
12:00 AM
GMT
2:00 AM
CET
→
1:00 AM
GMT
3:00 AM
CET
→
2:00 AM
GMT
4:00 AM
CET
→
3:00 AM
GMT
5:00 AM
CET
→
4:00 AM
GMT
6:00 AM
CET
→
5:00 AM
GMT
7:00 AM
CET
→
6:00 AM
GMT
8:00 AM
CET
→
7:00 AM
GMT
9:00 AM
CET
→
8:00 AM
GMT
10:00 AM
CET
→
9:00 AM
GMT
11:00 AM
CET
→
10:00 AM
GMT
12:00 PM
CET
→
11:00 AM
GMT
1:00 PM
CET
→
12:00 PM
GMT
2:00 PM
CET
→
1:00 PM
GMT
3:00 PM
CET
→
2:00 PM
GMT
4:00 PM
CET
→
3:00 PM
GMT
5:00 PM
CET
→
4:00 PM
GMT
6:00 PM
CET
→
5:00 PM
GMT
7:00 PM
CET
→
6:00 PM
GMT
8:00 PM
CET
→
7:00 PM
GMT
9:00 PM
CET
→
8:00 PM
GMT
10:00 PM
CET
→
9:00 PM
GMT
11:00 PM
CET
→
10:00 PM
GMT
The two zones in context

CET vs GMT — cities and working rhythm

CET — Central European Time
Primary cities: Paris, Berlin, Amsterdam, Madrid, Rome, Warsaw, Stockholm

Most of continental Europe — DACH, Benelux, France, Iberia, Nordics (except Finland), Poland, Czech Republic. Business hours 9 AM – 5:30 PM CET, with a longer lunch (12:30 – 2 PM) in southern countries. Winter: CET (UTC+1); summer: CEST (UTC+2). Big lag against North America — early morning CET overlaps late night ET.

GMT — Greenwich Mean Time
Primary cities: London, Dublin, Lisbon, Accra, Reykjavík

UK / Ireland / Iceland / Portugal / West Africa. Business hours 9 AM – 5:30 PM GMT typically. Note: London is on GMT in winter, BST (GMT+1) in summer — but "GMT" gets used loosely all year in scheduling contexts. Financial-services London anchors the European trading day.

Time gap: GMT is 1.0 hours behind CET (standard-time offsets — daylight-saving flips shift this by an hour twice a year in most northern-hemisphere zones).

CET to GMT FAQ

Quick answers about daylight saving time, date changes, business-hour overlap, and the most common scheduling questions between Central European Time and Greenwich Mean Time.

What is the time difference between CET and GMT?

GMT is 1 hour behind CET. CET is UTC +1:00 and GMT is UTC +0:00 relative to UTC. CET observes daylight saving but GMT does not, so the gap between them shifts by one hour twice a year. In CET winter the difference is 1 hour; in summer it changes by an hour.

When can CET and GMT have business-hour overlap?

Aim for 10:00–17:00 CET, which is 09:00–16:00 GMT. Both sides stay inside standard business hours.

Does CET or GMT observe daylight saving time?

CET observes daylight saving but GMT does not, so the gap between them shifts by one hour twice a year. In CET winter the difference is 1 hour; in summer it changes by an hour.

How do I quickly convert CET to GMT?

To convert CET to GMT, add 1 hour subtract from the CET time. Example: if it's 10:00 AM CET, it's 09:00 GMT that day. The live converter at the top of this page handles DST automatically.

Popular CET Time Converters

Explore more CET conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.

Convert Other Time Zones to GMT

Find the time difference from any major zone into Greenwich Mean Time. Use these pages when scheduling with Universal from a different region.

🌍 Swap direction — GMT to CET Converter