Siena to London: time difference
London is 1 h behind Siena. 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.
Siena 19:20 7:20 PM London 18:20 6:20 PM You –:–
19:20 7:20 PM
Central European Summer Time · UTC+2
☀️ 07:31 · 🌙 18:30
18:20 6:20 PM
British Summer Time · UTC+1
☀️ 07:28 · 🌙 18:05
·
−1 h
London is 1 h behind Siena.
When you, Siena 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
🇮🇹 Siena
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
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 20 8 PM 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇹 Siena | 🇬🇧 London |
|---|---|---|
| Local time | 19:20 | 18:20 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Central European Summer Time | British Summer Time |
| UTC offset | UTC+2 | UTC+1 |
| Offset from Siena | — | −1 h |
| IANA zone | Europe/Rome | Europe/London |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:31 | 07:28 |
| Sunset | 18:30 | 18:05 |
| Daylight | 10 h 59 min | 10 h 37 min |
| People on this clock | 53,903 | 8,908,083 |
Compare Siena with another city
More comparisons with Siena: the time zones next to it and the far side of the clock.
Big time differences
Siena and London: common questions
How many hours behind Siena is London?
The clocks in London are 1 hour behind those in Siena (UTC+1 and UTC+2).
What time is it in London when it is 9:00 AM in Siena?
When it is 9:00 AM in Siena, it is 8:00 AM in London.
What time is it in London at the end of the working day in Siena?
The working day in Siena ends at 6:00 PM; in London it is 5:00 PM at that moment.
When do working hours in Siena and in London overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Siena, which is 9:00 AM to 5:00 PM in London.
When is it still the previous day in London?
Until 1:00 AM in Siena it is still the previous day in London. The other way round, from 11:00 PM in London it is already the next day in Siena.
Does the time difference between Siena and London change?
No. The clocks in Siena and in London change on the same dates, so the difference stays 1 hour.
