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EU Time Zones — Complete Reference

The European Union spans three main time zones. Understanding these is essential for scheduling cross-border meetings, setting contract deadlines, and coordinating distributed teams across the continent.

Time Zone	Standard (Winter)	Summer (DST)	Countries
Western European Time	UTC+0 (WET)	UTC+1 (WEST)	Portugal, Ireland, UK (non-EU)
Central European Time	UTC+1 (CET)	UTC+2 (CEST)	Belgium, Germany, France, Netherlands, Poland, Spain, Italy, Austria, Sweden, Denmark, Norway, Switzerland
Eastern European Time	UTC+2 (EET)	UTC+3 (EEST)	Finland, Greece, Romania, Bulgaria, Estonia, Latvia, Lithuania, Cyprus

EU Daylight Saving Time

All EU member states observe Daylight Saving Time (DST), shifting clocks forward 1 hour on the last Sunday of March and back on the last Sunday of October. The European Parliament voted to abolish DST in 2019, but implementation has been delayed — as of 2026 the twice-yearly clock change remains in effect across the EU.

Best Times for EU Business Meetings

For pan-European meetings covering CET to EET zones, the optimal window is 09:00–16:00 CET. When including UK (GMT/BST) teams, start no earlier than 10:00 CET. For EU–US East Coast meetings, the overlap window is narrow: 14:00–17:00 CET (08:00–11:00 ET). EU–US West Coast is extremely challenging — 17:00 CET = 08:00 PT, leaving almost no business-hours overlap.

Contract Deadlines and Time Zones

When EU contracts specify deadlines ("by end of day"), the applicable time zone matters legally. Belgian and French law typically defaults to CET for domestic contracts. For international contracts, always specify the time zone explicitly (e.g., "23:59 CET on 31 December 2026"). Cross-border EU contracts often specify Brussels time as the reference.

Frequently Asked Questions

What is CET and CEST?

CET (Central European Time) is UTC+1, used in winter by most EU countries including Belgium, Germany, France, Netherlands, Poland, and others. CEST (Central European Summer Time) is UTC+2, applied during summer when clocks are moved forward. The switch happens on the last Sunday of March (to summer) and last Sunday of October (back to winter).

When does EU change clocks in 2026?

In 2026, EU countries move clocks forward on Sunday, 29 March 2026 at 02:00 local time (to 03:00 — start of CEST). Clocks go back on Sunday, 25 October 2026 at 03:00 local time (to 02:00 — return to CET). These dates apply to all EU member states simultaneously.

What time zone does Belgium use?

Belgium uses Central European Time (CET, UTC+1) in winter and Central European Summer Time (CEST, UTC+2) in summer. Brussels, as the de facto capital of the EU, is the reference point for many EU institutional meetings and deadlines. When an EU regulation says "midnight," it typically means midnight Brussels time.

How do I schedule a meeting between Brussels and New York?

Brussels (CET) is UTC+1 in winter and UTC+2 in summer. New York (ET) is UTC-5 in winter and UTC-4 in summer. The time difference is 6 hours in winter and 5–6 hours depending on DST timing. A 15:00 Brussels meeting = 09:00 New York (winter) or 10:00 (summer). The best overlap window is 14:00–17:00 Brussels time.