London to Sīrjān: time difference
Sīrjān is 2 h 30 min 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 17:57 5:57 PM Sīrjān 20:27 8:27 PM You –:–
17:57 5:57 PM
British Summer Time · UTC+1
☀️ 07:28 · 🌙 18:05
20:27 8:27 PM
Iran Standard Time · UTC+3:30
☀️ 05:50 · 🌙 17:16
·
+2 h 30 min
Sīrjān is 2 h 30 min ahead of London.
When you, London and Sīrjān 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
🇮🇷 Sīrjān
2:30 2:30 AM 3:30 3:30 AM 4:30 4:30 AM 5:30 5:30 AM 6:30 6:30 AM 7:30 7:30 AM 8:30 8:30 AM 9:30 9:30 AM 10:30 10:30 AM 11:30 11:30 AM 12:30 12:30 PM 13:30 1:30 PM 14:30 2:30 PM 15:30 3:30 PM 16:30 4:30 PM 17:30 5:30 PM 18:30 6:30 PM 19:30 7:30 PM 20:30 8:30 PM 21:30 9:30 PM 22:30 10:30 PM 23:30 11:30 PM 0:30 12:30 AM 1:30 1:30 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇧 London | 🇮🇷 Sīrjān |
|---|---|---|
| Local time | 17:57 | 20:27 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | British Summer Time | Iran Standard Time |
| UTC offset | UTC+1 | UTC+3:30 |
| Offset from London | — | +2 h 30 min |
| IANA zone | Europe/London | Asia/Tehran |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:28 | 05:50 |
| Sunset | 18:05 | 17:16 |
| Daylight | 10 h 37 min | 11 h 26 min |
| People on this clock | 8,908,083 | 199,704 |
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 Sīrjān: common questions
How many hours ahead of London is Sīrjān?
The clocks in Sīrjān are 2 hours and 30 minutes ahead of those in London (UTC+3:30 and UTC+1).
What time is it in Sīrjān at the start of the working day in London?
The working day in London starts at 9:00 AM; in Sīrjān it is 11:30 AM at that moment.
What time is it in Sīrjān at the end of the working day in London?
The working day in London ends at 6:00 PM; in Sīrjān it is 8:30 PM at that moment.
When do working hours in London and in Sīrjān overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:30 PM in London, which is 11:30 AM to 6:00 PM in Sīrjān.
When is it already the next day in Sīrjān?
From 9:30 PM in London it is already the next day in Sīrjān. The other way round, until 2:30 AM in Sīrjān it is still the previous day in London.
Does the time gap between London and Sīrjān change during the year?
Yes – daylight saving time is used in London but not in Sīrjān. From October 25, 2026, Sīrjān will be 3 hours and 30 minutes ahead of London.
