Currently on BST (UTC+1). Next clock change: Sunday 25 October 2026 at 02:00, when clocks go back to GMT (UTC+0).
Time zone in Cardiff
| Country | United Kingdom |
|---|---|
| IANA time zone | Europe/London |
| Standard (winter) time | GMT (UTC+0) |
| Daylight saving (summer) time | BST (UTC+1) |
| Same clock as | London, Manchester, Birmingham, Edinburgh, Glasgow, Belfast, Dublin, Lisbon |
What to know about time in Cardiff
Wales follows UK time. Cardiff is on GMT in winter and BST in summer.
Clock changes in Cardiff in 2026 and 2027
- Sunday 29 March 2026: at 01:00 clocks go forward to 02:00. GMT (UTC+0) becomes BST (UTC+1), and the hour in between is skipped.
- Sunday 25 October 2026: at 02:00 clocks go back to 01:00. BST (UTC+1) becomes GMT (UTC+0), and the hour from 01:00 happens twice.
- Sunday 28 March 2027: at 01:00 clocks go forward to 02:00. GMT (UTC+0) becomes BST (UTC+1), and the hour in between is skipped.
- Sunday 31 October 2027: at 02:00 clocks go back to 01:00. BST (UTC+1) becomes GMT (UTC+0), and the hour from 01:00 happens twice.
Times are local. Phones, laptops and other devices that set their time automatically will update themselves. Wall clocks, ovens and car clocks usually need changing by hand.
Time difference between Cardiff and other cities
The table shows how far each city is ahead of or behind Cardiff, and how that changes when either place changes its clocks between now and the end of 2027.
| City | Now | Through 2026 and 2027 |
|---|---|---|
| New York | 5 hours behind | 5 hours behind until 25 Oct 2026; 4 hours behind 25 Oct 2026 to 1 Nov 2026; 5 hours behind 1 Nov 2026 to 14 Mar 2027; 4 hours behind 14 Mar 2027 to 28 Mar 2027; 5 hours behind 28 Mar 2027 to 31 Oct 2027; 4 hours behind 31 Oct 2027 to 7 Nov 2027; 5 hours behind from 7 Nov 2027 |
| Los Angeles | 8 hours behind | 8 hours behind until 25 Oct 2026; 7 hours behind 25 Oct 2026 to 1 Nov 2026; 8 hours behind 1 Nov 2026 to 14 Mar 2027; 7 hours behind 14 Mar 2027 to 28 Mar 2027; 8 hours behind 28 Mar 2027 to 31 Oct 2027; 7 hours behind 31 Oct 2027 to 7 Nov 2027; 8 hours behind from 7 Nov 2027 |
| Dubai | 3 hours ahead | 3 hours ahead until 25 Oct 2026; 4 hours ahead 25 Oct 2026 to 28 Mar 2027; 3 hours ahead 28 Mar 2027 to 31 Oct 2027; 4 hours ahead from 31 Oct 2027 |
| Mumbai | 4½ hours ahead | 4½ hours ahead until 25 Oct 2026; 5½ hours ahead 25 Oct 2026 to 28 Mar 2027; 4½ hours ahead 28 Mar 2027 to 31 Oct 2027; 5½ hours ahead from 31 Oct 2027 |
| Singapore | 7 hours ahead | 7 hours ahead until 25 Oct 2026; 8 hours ahead 25 Oct 2026 to 28 Mar 2027; 7 hours ahead 28 Mar 2027 to 31 Oct 2027; 8 hours ahead from 31 Oct 2027 |
| Tokyo | 8 hours ahead | 8 hours ahead until 25 Oct 2026; 9 hours ahead 25 Oct 2026 to 28 Mar 2027; 8 hours ahead 28 Mar 2027 to 31 Oct 2027; 9 hours ahead from 31 Oct 2027 |
| Sydney | 10 hours ahead | 10 hours ahead until 25 Oct 2026; 11 hours ahead 25 Oct 2026 to 28 Mar 2027; 10 hours ahead 28 Mar 2027 to 4 Apr 2027; 9 hours ahead 4 Apr 2027 to 3 Oct 2027; 10 hours ahead 3 Oct 2027 to 31 Oct 2027; 11 hours ahead from 31 Oct 2027 |
Working hours overlap
How much of a 09:00–17:00 working day in Cardiff overlaps with the same hours elsewhere, using a mid-week day in January and July 2027:
- New York: in January, 3 hours: 14:00–17:00 in Cardiff is 09:00–12:00 in New York; in July, 3 hours: 14:00–17:00 in Cardiff is 09:00–12:00 in New York.
Plan around Cardiff time
- Convert a time in Cardiff to another city, on any date
- Find a meeting time that works for Cardiff and up to four other places
- All time zones in United Kingdom