Time difference between Dublin and Brussels
Brussels is 1 hour ahead of Dublin. When it's 9:00 in Dublin, it's 10:00 in Brussels.
Brussels is 1 hour ahead of Dublin.
On Sunday, 4 October 2026, 09:00 in Dublin is 10:00 in Brussels. Dublin is UTC+1; Brussels is UTC+2.
The gap through 2026
It stays 1 hour all year — neither city changes its clocks against the other.
- Dublin moves its clocks forward on 29 March (UTC → UTC+1).
- Brussels moves its clocks forward on 29 March (UTC+1 → UTC+2).
- Dublin moves its clocks back on 25 October (UTC+1 → UTC).
- Brussels moves its clocks back on 25 October (UTC+2 → UTC+1).
Dublin to Brussels, hour by hour
On Monday 5 October.
| Dublin | Brussels |
|---|---|
| 07:00 Early morning | 08:00 Early morning |
| 08:00 Early morning | 09:00 Working hours |
| 09:00 Working hours | 10:00 Working hours |
| 10:00 Working hours | 11:00 Working hours |
| 11:00 Working hours | 12:00 Working hours |
| 12:00 Working hours | 13:00 Working hours |
| 13:00 Working hours | 14:00 Working hours |
| 14:00 Working hours | 15:00 Working hours |
| 15:00 Working hours | 16:00 Working hours |
| 16:00 Working hours | 17:00 Evening |
| 17:00 Evening | 18:00 Evening |
| 18:00 Evening | 19:00 Evening |
| 19:00 Evening | 20:00 Evening |
| 20:00 Evening | 21:00 Evening |
| 21:00 Evening | 22:00 Sleeping hours |
| 22:00 Sleeping hours | 23:00 Sleeping hours |
Daylight saving in 2026
- Dublin moves its clocks forward on Sunday 29 March (UTC → UTC+1).
- Brussels moves its clocks forward on Sunday 29 March (UTC+1 → UTC+2).
- Dublin moves its clocks back on Sunday 25 October (UTC+1 → UTC).
- Brussels moves its clocks back on Sunday 25 October (UTC+2 → UTC+1).
Best times for a call
Working hours (09:00–17:00) overlap for 7 hours: 09:00–16:00 in Dublin, which is 10:00–17:00 in Brussels.
- Dublin 09:00Working hoursBrussels 10:00Working hours
- Dublin 10:00Working hoursBrussels 11:00Working hours
- Dublin 11:00Working hoursBrussels 12:00Working hours
More time differences for Dublin and Brussels
- New York and Dublin
- New York and Brussels
- Los Angeles and Dublin
- Los Angeles and Brussels
- Chicago and Dublin
- Chicago and Brussels
- Denver and Dublin
- Denver and Brussels
- Toronto and Dublin
- Toronto and Brussels
- Vancouver and Dublin
- Vancouver and Brussels
- Mexico City and Dublin
- Mexico City and Brussels
- São Paulo and Dublin
- São Paulo and Brussels
- Buenos Aires and Dublin
- Buenos Aires and Brussels
- Bogotá and Dublin
- Bogotá and Brussels
- London and Dublin
- London and Brussels
- Dublin and Lisbon
- Dublin and Madrid
- Dublin and Paris
- Dublin and Amsterdam
- Dublin and Berlin
- Dublin and Zurich
- Dublin and Rome
- Dublin and Stockholm
- Dublin and Warsaw
- Dublin and Athens
How the time difference calculator works
The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.
Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.
Examples
- London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
- Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.
Good for
- Knowing when a colleague's day starts
- Setting expectations for replies across time zones
- Planning travel and jet lag
Frequently asked questions
- What time is it in Brussels when it's 9 AM in Dublin?
- 10:00 AM — as of 4 October 2026. Brussels is 1 hour ahead of Dublin.
- Does the time difference between Dublin and Brussels change?
- No. It's 1 hour all through 2026: both cities change their clocks on the same dates.
- What's the best time for a call between Dublin and Brussels?
- Between 09:00 and 16:00 Dublin time, when both cities are in working hours (09:00–17:00).
- What time zones are Dublin and Brussels in?
- Dublin uses Europe/Dublin (UTC+1 today); Brussels uses Europe/Brussels (UTC+2 today).
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