London to Tehran Time Difference
Tehran is 2 hours 30 min ahead of London. When it is noon in London, it is 14.5:00 in Tehran.
London (UTC+1) → Tehran (UTC+3:30)
🕐 Interactive Time Explorer
When it's 14:00 in London, it's 16.5:00 in Tehran
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
London & Tehran✓ Perfect Match (6 hours)
◐ Extended Hours (4 hours)
✈️ Travel Information
Distance
4,397 km
Est. Flight Time
~6.2h
Time Difference
+2.5h
Work Hours Overlap
6h
Excellent
🔴 Office Closed
Tomorrow 09:00
09:00 - 15:00
⏰ Quick Conversion
06:00
London
8.5:00
Tehran
09:00
London
11.5:00
Tehran
12:00
London
14.5:00
Tehran
15:00
London
17.5:00
Tehran
18:00
London
20.5:00
Tehran
21:00
London
23.5:00
Tehran
00:00
London
2.5:00
Tehran
03:00
London
5.5:00
Tehran
Frequently Asked Questions
How many hours is London behind Tehran?
Tehran is 2 hours 30 min ahead of London. When it is 12:00 noon in London, it is 14.5:00 in Tehran. London operates on Europe/London (UTC+1), while Tehran uses Asia/Tehran (UTC+3.5).
What is the best time to call Tehran from London?
There are 6 hours of overlapping business time (9 AM–5 PM) between London and Tehran. The best window is 09:00–15:00 London time (11.5:00–17.5:00 in Tehran).
Does the London to Tehran time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between London and Tehran
The distance between London and Tehran is approximately 4,397 km. A direct flight typically takes around 6.2 hours. Your arrival clock will show local Tehran time — use our Flight Time Calculator to predict exact arrival times.