The CET/CEST Zone: Most of Western and Central Europe
From late October to late March, Belgium runs on Central European Time (CET, UTC+1). From late March to late October, it shifts to Central European Summer Time (CEST, UTC+2). This is Europe’s most populous time zone, a contiguous block stretching from Spain’s Atlantic coast to Poland’s eastern border.
When a clock in the Belgian capital shows an hour, Paris, Berlin, Amsterdam, Rome, Madrid, Vienna, Copenhagen, Oslo, Stockholm, and Warsaw show the same hour. The IANA database labels this zone Europe/Brussels.
Full List of Countries on CET/CEST
These countries follow the same clock changes as Belgium: they switch to CEST on the last Sunday of March and back to CET on the last Sunday of October.
| Country | Notes |
|---|---|
| Belgium | , |
| France | , |
| Germany | , |
| Netherlands | , |
| Luxembourg | , |
| Italy | , |
| Spain | Mainland, Balearic Islands, Ceuta, Melilla |
| Austria | , |
| Denmark | Mainland only |
| Sweden | , |
| Norway | , |
| Poland | , |
| Czech Republic | , |
| Slovakia | , |
| Hungary | , |
| Slovenia | , |
| Croatia | , |
| Switzerland | , |
| Liechtenstein | , |
| Malta | , |
| San Marino | , |
| Vatican City | , |
| Monaco | , |
| Andorra | , |
Total: 23 countries share the full CET/CEST schedule with Belgium.
Major Cities in the Same Zone: Paris, Berlin, Rome, Madrid
If you need to schedule a call or a train connection, these cities are on the same time as Belgium year-round:
- Paris (France)
- Berlin (Germany)
- Amsterdam (Netherlands)
- Rome (Italy)
- Madrid (Spain)
- Vienna (Austria)
- Copenhagen (Denmark)
- Oslo (Norway)
- Stockholm (Sweden)
- Warsaw (Poland)
- Geneva (Switzerland)
- Zurich (Switzerland)
No time conversion needed. When it is 14:00 in the Belgian capital, it is 14:00 in all these cities.
Countries That Use CET Year-Round (No DST)
A few countries use CET (UTC+1) all year and do not switch to summer time. They share the clock with Belgium only during winter.
- Algeria: CET year-round.
- Tunisia: CET year-round.
In summer (CEST, UTC+2), these countries are one hour behind. In winter (CET, UTC+1), they are the same.
The EU and Non-EU Distinction
All 23 countries listed above are in the European Union except for Norway, Switzerland, Liechtenstein, Monaco, Andorra, San Marino, and Vatican City. The EU mandates the DST schedule (last Sunday March to last Sunday October) for its members. Non-EU countries in the zone voluntarily follow the same dates, keeping the zone aligned.
The zone’s geographic extent is large. It stretches from Spain in the west (the Canary Islands are one hour behind on WET/WEST) to Poland in the east. The north-south range covers Norway and Sweden down to Malta and the Mediterranean microstates.
How the Zone Stretches from Spain to Poland
The CET/CEST zone is not limited to Central Europe. It covers:
- Western edge: Spain (mainland) and France.
- Southern edge: Italy, Malta, San Marino, Vatican City.
- Northern edge: Norway, Sweden.
- Eastern edge: Poland, Czech Republic, Slovakia, Hungary, Croatia, Slovenia.
When it is noon in Belgium, it is noon in Madrid and noon in Warsaw. The sun, of course, is at a different point in the sky: in the capital, solar noon is around 12:45 in winter and 13:45 in summer. But the clock shows the same number.
What This Means for You
If you are booking a meeting with someone in any of these 23 countries, you do not need to convert times. The only thing to check is whether they observe DST on the same dates. They all do. The next change for the entire zone is Sunday 28 March 2027 at 02:00 local, when clocks go forward 60 minutes to 03:00 (CET to CEST). After that, the zone remains on summer time until Sunday 31 October 2027 at 03:00 local, when clocks go back to 02:00.
For more practical help, see the Brussels Time FAQ or use the Time Zone Converters to check any city against Belgium’s time.