Observatory log
London and Cardiff, compared
- 01Difference now
London and Cardiff have the same time.
London: BST (UTC+1) · Cardiff: BST (UTC+1)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027Same time
Difference of Cardiff from London. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Mon–Fri: 09:00–17:00 in London = 09:00–17:00 in Cardiff · 8 h
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–17:00 in London = 09:00–17:00 in Cardiff
Inside both working days (Mon–Fri).
- 05Weekend
London: Saturday and Sunday
Cardiff: Saturday and Sunday
24 hours
A day in London, in Cardiff
| London | Cardiff | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 00:00 | |
| 01:00 | 01:00 | |
| 02:00 | 02:00 | |
| 03:00 | 03:00 | |
| 04:00 | 04:00 | |
| 05:00 | 05:00 | |
| 06:00 | 06:00 | |
| 07:00 | 07:00 | |
| 08:00 | 08:00 | |
| 09:00 | 09:00 | |
| 10:00 | 10:00 | |
| 11:00 | 11:00 | |
| 12:00 | 12:00 | |
| 13:00 | 13:00 | |
| 14:00 | 14:00 | |
| 15:00 | 15:00 | |
| 16:00 | 16:00 | |
| 17:00 | 17:00 | |
| 18:00 | 18:00 | |
| 19:00 | 19:00 | |
| 20:00 | 20:00 | |
| 21:00 | 21:00 | |
| 22:00 | 22:00 | |
| 23:00 | 23:00 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: London and Cardiff
More time differences with London
Questions
Asked about London and Cardiff
What is the time difference between London and Cardiff?
London and Cardiff have the same time. The difference stays the same all year.
What is the best time for a call between London and Cardiff?
Inside both working days: Mon–Fri: 09:00–17:00 in London = 09:00–17:00 in Cardiff · 8 h.
When does the time difference between London and Cardiff change?
It does not change in the next 12 months: London and Cardiff either keep the same time all year or change their clocks on the same dates.