Reunion to London: time difference
London is 4 h behind Reunion. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Reunion 21:54 9:54 PM London 17:54 5:54 PM You –:–
21:54 9:54 PM
Réunion Time · UTC+4
☀️ 05:34 · 🌙 18:31
17:54 5:54 PM
Greenwich Mean Time · UTC+0
☀️ 07:01 · 🌙 16:28
·
−4 h
London is 4 h behind Reunion.
When you, Reunion and London are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇷🇪 Reunion
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇬🇧 London
20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇷🇪 Reunion | 🇬🇧 London |
|---|---|---|
| Local time | 21:54 | 17:54 |
| Local date | Thursday, November 5, 2026 | Thursday, November 5, 2026 |
| Time zone | Réunion Time | Greenwich Mean Time |
| UTC offset | UTC+4 | UTC+0 |
| Offset from Reunion | — | −4 h |
| IANA zone | Indian/Reunion | Europe/London |
| Daylight saving | Not observed | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 05:34 | 07:01 |
| Sunset | 18:31 | 16:28 |
| Daylight | 12 h 56 min | 9 h 27 min |
| People on this clock | 881,348 | 8,908,083 |
Compare Reunion with another city
More comparisons with Reunion: the time zones next to it and the far side of the clock.
Big time differences
Reunion and London: common questions
What is the time difference between Reunion and London?
London is 4 hours behind: it uses UTC+0, while Reunion is on UTC+4.
What time is it in London at the start of the working day in Reunion?
The working day in Reunion starts at 9:00 AM; in London it is 5:00 AM at that moment.
If it is 6:00 PM in Reunion, what time is it in London?
At 6:00 PM in Reunion, clocks in London show 2:00 PM.
Is there a time when both Reunion and London are at work?
Yes: from 1:00 PM to 6:00 PM in Reunion (9:00 AM to 2:00 PM in London), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in London?
Until 4:00 AM in Reunion it is still the previous day in London. The other way round, from 8:00 PM in London it is already the next day in Reunion.
Is the time difference between Reunion and London the same all year?
No. Only London switches to summer time, so the gap changes twice a year. From March 28, 2027, London will be 3 hours behind Reunion.
