Time zone in Cardiff
- Time zone: British Summer Time
- UTC offset right now: UTC+1
- IANA time zone ID: Europe/London
- Country: United Kingdom
Daylight saving time
Cardiff observes daylight saving time. Right now it is on British Summer Time (UTC+1).
- On Sunday, October 25, 2026, clocks in Cardiff go back one hour, to UTC+0.
- On Sunday, March 28, 2027, clocks in Cardiff go forward one hour, to UTC+1.
Good to know
London is home to Greenwich, the reference point for world time. The UK uses Greenwich Mean Time (UTC+0) in winter and British Summer Time (UTC+1) in summer.
Cardiff compared to other cities
| City | Time now | vs. Cardiff |
|---|---|---|
| New York | — | 5 hrs behind |
| Los Angeles | — | 8 hrs behind |
| Chicago | — | 6 hrs behind |
| London | — | Same time |
| Paris | — | 1 hr ahead |
| Dubai | — | 3 hrs ahead |
| Mumbai | — | 4 hrs 30 min ahead |
| Tokyo | — | 8 hrs ahead |
Planning a call? Use the time zone converter to check any time of day.
Calling Cardiff
Office hours in Cardiff and New York overlap for about 3 hours a day, from 9 AM to 12 PM in New York (2 PM to 5 PM in Cardiff).
When it's 9 AM in Cardiff today, it's New York: Wed 4:00 AM · London: Wed 9:00 AM · Dubai: Wed 12:00 PM · Tokyo: Wed 5:00 PM · Sydney: Wed 7:00 PM.