London to Siena: time difference
Siena is 1 h ahead of London. 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.
London 20:52 8:52 PM Siena 21:52 9:52 PM You –:–
20:52 8:52 PM
British Summer Time · UTC+1
☀️ 07:28 · 🌙 18:05
21:52 9:52 PM
Central European Summer Time · UTC+2
☀️ 07:31 · 🌙 18:30
·
+1 h
Siena is 1 h ahead of London.
When you, London and Siena are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇬🇧 London
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
🇮🇹 Siena
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇧 London | 🇮🇹 Siena |
|---|---|---|
| Local time | 20:52 | 21:52 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | British Summer Time | Central European Summer Time |
| UTC offset | UTC+1 | UTC+2 |
| Offset from London | — | +1 h |
| IANA zone | Europe/London | Europe/Rome |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:28 | 07:31 |
| Sunset | 18:05 | 18:30 |
| Daylight | 10 h 37 min | 10 h 59 min |
| People on this clock | 8,908,083 | 53,903 |
Compare London with another city
More comparisons with London: the time zones next to it and the far side of the clock.
Big time differences
London and Siena: common questions
What is the time difference between London and Siena?
Siena is 1 hour ahead: it uses UTC+2, while London is on UTC+1.
What time is it in Siena at the start of the working day in London?
The working day in London starts at 9:00 AM; in Siena it is 10:00 AM at that moment.
If it is 6:00 PM in London, what time is it in Siena?
At 6:00 PM in London, clocks in Siena show 7:00 PM.
When do working hours in London and in Siena overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in London, which is 10:00 AM to 6:00 PM in Siena.
When is it already the next day in Siena?
From 11:00 PM in London it is already the next day in Siena. The other way round, until 1:00 AM in Siena it is still the previous day in London.
Is the time difference between London and Siena the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 1 hour.
