CET to GMT Converter

Category: Time Zone Converters

- July 01, 2025

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Central European Time (CET)

UTC+1 • Berlin, Paris, Rome

Conversion Settings

Configure your timezone conversion preferences

Auto Convert

Daylight Saving Aware

Show UTC Offset

Greenwich Mean Time (GMT)

UTC+0 • London, Dublin, Lisbon

--:--:--

Select a time to convert

Time Difference: --

UTC Offset (CET): +01:00

UTC Offset (GMT): +00:00

DST Status: --

CET/CEST Time: --

GMT Time: --

Time Format:

Current CET/CEST: --:--:--

Current GMT: --:--:--

🇪🇺 CET (UTC+1) is used during winter. CEST (UTC+2) is used during summer daylight saving time from March to October. GMT (UTC+0) is always constant.

CET to GMT Conversion Guide

What is CET to GMT Conversion?

CET to GMT conversion helps you translate time between Central European Time and Greenwich Mean Time zones. CET is UTC+1 during winter and becomes CEST (UTC+2) during daylight saving time from March to October. GMT is always UTC+0 and serves as the reference point for world time zones.

Time Zone Information

Central European Time (CET): Used in most of Central Europe including Germany, France, Italy, and Spain. UTC+1 in winter, becomes CEST (UTC+2) during daylight saving.

Greenwich Mean Time (GMT): The standard time zone that serves as the baseline for all other time zones. Always UTC+0 and never changes.

Time Difference: CET is 1 hour ahead of GMT during winter, and CEST is 2 hours ahead of GMT during summer.

Daylight Saving Time Impact

Winter Period (CET): Last Sunday in October to last Sunday in March - CET is 1 hour ahead of GMT

Summer Period (CEST): Last Sunday in March to last Sunday in October - CEST is 2 hours ahead of GMT

Transition Times: Clocks change at 1:00 AM UTC on transition dates

Common Conversion Examples

Winter Period (CET Active)

CET 12:00 PM → GMT 11:00 AM

CET 6:00 PM → GMT 5:00 PM

CET is 1 hour ahead of GMT during winter

Summer Period (CEST Active)

CEST 12:00 PM → GMT 10:00 AM

CEST 6:00 PM → GMT 4:00 PM

CEST is 2 hours ahead of GMT during summer

Business Hours

CET 9:00 AM → GMT 8:00 AM

CET 5:00 PM → GMT 4:00 PM

Standard European business hours conversion

International Coordination

CET Noon → GMT 11:00 AM

CET Midnight → GMT 11:00 PM (prev day)

Important for global scheduling

Conversion Tips & Best Practices

• CEST begins on the last Sunday in March at 1:00 AM UTC (clocks spring forward to 3:00 AM CEST)

• CEST ends on the last Sunday in October at 1:00 AM UTC (clocks fall back to 2:00 AM CET)

• GMT serves as the global reference point and never changes throughout the year

• Most of Continental Europe follows the same daylight saving schedule as CET/CEST

• Always verify whether Central European Time is currently observing CET or CEST when scheduling

• Use GMT for scientific calculations and international coordination as it remains constant

Convert Between Central European Time and GMT

If you’re dealing with meetings, deadlines or events that span across Europe and the UK, converting between CET/CEST and GMT should be painless. This converter handles the seasonal switch between CET and CEST, gives you the exact difference in time, and shows you the full output with no confusion. First, here’s a quick guide to which countries use these time zones:

Central European Time (CET/CEST, UTC+1/+2)	Greenwich Mean Time (GMT, UTC+0)
🇦🇱 Albania 🇦🇩 Andorra 🇦🇹 Austria 🇧🇪 Belgium 🇧🇦 Bosnia and Herzegovina 🇭🇷 Croatia 🇨🇿 Czech Republic 🇩🇰 Denmark 🇫🇷 France 🇩🇪 Germany 🇭🇺 Hungary 🇮🇹 Italy 🇱🇮 Liechtenstein 🇱🇺 Luxembourg 🇲🇹 Malta 🇲🇨 Monaco 🇲🇪 Montenegro 🇳🇱 Netherlands 🇲🇰 North Macedonia 🇳🇴 Norway 🇵🇱 Poland 🇸🇲 San Marino 🇷🇸 Serbia 🇸🇰 Slovakia 🇸🇮 Slovenia 🇪🇸 Spain (mainland) 🇸🇪 Sweden 🇨🇭 Switzerland 🇻🇦 Vatican City	🇬🇧 United Kingdom 🇮🇪 Ireland 🇵🇹 Portugal (mainland) 🇮🇸 Iceland 🇬🇲 The Gambia 🇬🇭 Ghana 🇬🇳 Guinea 🇱🇷 Liberia 🇲🇱 Mali 🇲🇷 Mauritania 🇸🇳 Senegal 🇸🇱 Sierra Leone 🇹🇬 Togo 🇸🇭 Saint Helena

Central European Time (CET/CEST, UTC+1/+2)

Greenwich Mean Time (GMT, UTC+0)

🇦🇱 Albania

🇦🇩 Andorra

🇦🇹 Austria

🇧🇪 Belgium

🇧🇦 Bosnia and Herzegovina

🇭🇷 Croatia

🇨🇿 Czech Republic

🇩🇰 Denmark

🇫🇷 France

🇩🇪 Germany

🇭🇺 Hungary

🇮🇹 Italy

🇱🇮 Liechtenstein

🇱🇺 Luxembourg

🇲🇹 Malta

🇲🇨 Monaco

🇲🇪 Montenegro

🇳🇱 Netherlands

🇲🇰 North Macedonia

🇳🇴 Norway

🇵🇱 Poland

🇸🇲 San Marino

🇷🇸 Serbia

🇸🇰 Slovakia

🇸🇮 Slovenia

🇪🇸 Spain (mainland)

🇸🇪 Sweden

🇨🇭 Switzerland

🇻🇦 Vatican City

🇬🇧 United Kingdom

🇮🇪 Ireland

🇵🇹 Portugal (mainland)

🇮🇸 Iceland

🇬🇲 The Gambia

🇬🇭 Ghana

🇬🇳 Guinea

🇱🇷 Liberia

🇲🇱 Mali

🇲🇷 Mauritania

🇸🇳 Senegal

🇸🇱 Sierra Leone

🇹🇬 Togo

🇸🇭 Saint Helena

Why This Tool Comes in Handy

CET isn’t always CET. Half the year, it becomes CEST. Meanwhile, GMT never changes. If you’ve ever tried to line up a Zoom call from Berlin to Dublin and had to Google “Is Germany in daylight saving time right now?” this converter removes the guesswork. It’s built to detect seasonal time changes and show you exactly what the hour difference is, today, tomorrow or any time you choose.

How It Works Step-by-Step

Step 1: Set Your Input Time

Pick the date and time you want to convert. The fields are simple to fill out and always use your browser's calendar and clock tools.

Step 2: Choose the Starting Time Zone

The dropdown gives you the choice of starting in Central European Time or Greenwich Mean Time. Depending on what you pick, the other side becomes your result zone.

Step 3: Let It Calculate (Automatically or Manually)

If “Auto Convert” is checked, the converter updates instantly as you type. If you prefer manual control, just click the “Convert” button once you’ve filled in everything.

Step 4: Review the Results

You’ll see:

The converted time and date
The current time difference in hours
Whether daylight saving time is active in Central Europe
UTC offsets for both zones (if enabled)

Tools and Tweaks Built Right In

Flip the Zones with One Click

If you need to reverse the direction, say, converting from GMT back to CET, just hit “Swap.” It switches the roles of the input and output without resetting your data.

Seasonal Awareness That Keeps You Accurate

From the last Sunday in March to the last Sunday in October, CET becomes CEST. This converter detects that and adjusts the hour difference accordingly, so you always get a reliable answer.

Live Clock Built In

It shows you the current time in both CET/CEST and GMT, updated in real time. This is helpful for keeping an eye on what time it is now, especially when double-checking availability across borders.

Reset and Refresh Any Time

If you want to start over, use the “Reset” button. It clears the fields, sets the current time as the default, and returns the zone labels to their original state.

12-Hour vs 24-Hour Format

Prefer military time or want to see AM/PM? Toggle between 12-hour and 24-hour format with a simple button. No page reload needed.

Scheduling a Project Launch from Rome to London

Suppose you're launching a new product in Rome and need to coordinate with a partner agency based in London. Set the kickoff for 3 PM CET on October 15. The tool will immediately tell you that translates to 2 PM GMT. But if your event happens on July 15 instead, the time becomes 1 PM GMT because Central Europe will be on CEST. That shift could easily lead to a missed call.

Stay on Time, Even When the Clocks Change

You don’t need to memorize when Europe changes clocks or do mental math with UTC offsets. This converter shows you exactly how Central European and Greenwich time line up, no matter the date. It’s a clear, fast way to make sure your schedule doesn’t get tripped up by seasonal changes or regional quirks.