Why did every Belgian town once run on its own clock?
A railway timetable cannot work if Ghent and Liège disagree by ten minutes. Before the railways forced the issue, that disagreement was normal. Each town set its clocks to the sun: 12:00 was the moment the sun hit its highest point overhead. Solar noon in Ghent is not solar noon in Liège. The difference in longitude is small, but it was enough to make a national schedule impossible.
In 1892 the government ended the chaos.
1892: the Brussels meridian becomes the national reference
The Law of 29 April 1892 unified time across Belgium. The reference was the meridian of Brussels: 4°21' east of Greenwich. Brussels solar time ran 17 minutes and 40 seconds ahead of Greenwich Mean Time. For the first time, every station, every post office, every official building in the country showed the same minute.
That lasted barely two years.
The switch to Greenwich Mean Time (1892-1894)
International pressure came fast. Much of continental Europe was aligning with GMT offsets. Railways crossing borders needed a common reference. Belgium switched to GMT between 1892 and 1894. The decision was practical: coordinate with neighbours. The country now ran on the same clock as Britain.
Not for long.
German occupation and Berlin time in both world wars
In 1914 German forces occupied Belgium. They brought Berlin time with them. Berlin sits at 13°24' E, roughly 9° east of Brussels. That put Belgium on UTC+1 in winter, UTC+2 in summer. After the war ended in 1918, Belgium kept the zone. The shift eastwards had already become the norm for trade and rail.
The same thing happened in World War II. From 1940 to 1944 Belgium was again on Berlin time. By the time peace returned, Central European Time was the default. It has been ever since.
Daylight saving time: first introduced under occupation in 1916
Belgium’s first experience with daylight saving time came under German occupation. In 1916 the German Empire introduced DST to conserve coal for the war effort. Belgium followed. Clocks went forward in spring, back in autumn.
After World War I the practice was abolished. Then came World War II. DST was reinstated. Abolished again after the war. Then reinstated permanently in 1977.
1977: Belgium aligns with the EEC DST directive
By the 1970s the European Economic Community wanted order. Each member state had its own DST rules. Some started in March, others in April. Some ended in September, others in October. The result was confusion for transport, broadcasting, and business.
The EEC issued a directive harmonising DST start and end dates. Belgium aligned in 1977. That is the year DST came back permanently. It has not left since.
How did the EU settle on one DST rule for Belgium?
The next big change came in 1996. The European Union set a single rule: DST starts on the last Sunday of March at 01:00 UTC and ends on the last Sunday of October at 01:00 UTC. That took effect in 1998. Belgium followed.
The current legal basis is EU Directive 2000/84/EC. Under that directive, Belgium moves from Central European Time (CET, UTC+1) to Central European Summer Time (CEST, UTC+2) on the last Sunday of March and back on the last Sunday of October.
The 2018 abolition proposal and where it stands today
In 2018 the European Commission proposed ending seasonal clock changes. The public consultation drew 4.6 million responses, 84% in favour of abolition. The European Parliament voted in 2019 to end DST by 2021. Each member state would choose its permanent time: CET or CEST.
The Council of the European Union did not agree. The proposal stalled. It remains stalled. Belgium has not taken a unilateral decision. If the EU eventually abolishes DST, Belgium will need to choose between darker winter evenings (permanent CET) or darker winter mornings (permanent CEST). No decision has been made.
The Royal Observatory of Belgium: keeper of legal time
The Royal Observatory of Belgium in Brussels maintains the country’s legal time. It operates atomic clocks and coordinates with the International Bureau of Weights and Measures. When you check the time on a Belgian government website, that is where it comes from.
The Observatory also keeps the record of Belgium’s time history. The Law of 29 April 1892 is still the legal foundation, though amended many times. Confirm the current law reference directly with the Observatory.
When do Belgium’s clocks change next?
If you are scheduling a call with someone in Brussels, you need to know two things. First, Belgium runs on Central European Time in winter (UTC+1) and Central European Summer Time in summer (UTC+2). Second, the clock changes happen on the same dates as the rest of the EU: the last Sunday of March and the last Sunday of October.
In 2026 the clocks go forward on 29 March at 02:00 local time. They go back on 25 October at 03:00 local time.
For a full breakdown of the current time zone rules, including offset tables for New York, London, Tokyo, and Dubai, see the Brussels time zone guide.
For the exact dates of DST changes through 2027, including what happens if the EU abolition ever takes effect, see the daylight saving time in Brussels page.