Time Difference

London vs Tehran Time Difference

Compare the current local time in London, United Kingdom and Tehran, Iran.

Live local timeDST awareUTC offsets

From

London

United Kingdom

4:53 AM

Mon, Aug 17

UTC+1Europe/London

Difference

2h 30m

Swap

Tehran

Iran

7:23 AM

Mon, Aug 17

UTC+3:30Asia/Tehran

Current difference

Tehran is currently 2 hours 30 minutes ahead of London.

This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.

24-hour comparison

Compare London and Tehran hour by hour

See how a full local day in London, United Kingdom maps to Tehran, Iran. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

9:00 AM – 4:00 PM in London

corresponds to 11:30 AM – 6:30 PM in Tehran.

7 hours overlap

London

Europe/London

Tehran

Asia/Tehran

Availability

12:00 AM

Mon, Aug 17

2:30 AM

Mon, Aug 17

Night

1:00 AM

Mon, Aug 17

3:30 AM

Mon, Aug 17

Night

2:00 AM

Mon, Aug 17

4:30 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

5:30 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

6:30 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

7:30 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

8:30 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

9:30 AM

Mon, Aug 17

Possible

8:00 AM

Mon, Aug 17

10:30 AM

Mon, Aug 17

Possible

9:00 AM

Mon, Aug 17

11:30 AM

Mon, Aug 17

Good overlap

10:00 AM

Mon, Aug 17

12:30 PM

Mon, Aug 17

Good overlap

11:00 AM

Mon, Aug 17

1:30 PM

Mon, Aug 17

Good overlap

12:00 PM

Mon, Aug 17

2:30 PM

Mon, Aug 17

Good overlap

1:00 PM

Mon, Aug 17

3:30 PM

Mon, Aug 17

Good overlap

2:00 PM

Mon, Aug 17

4:30 PM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

5:30 PM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

6:30 PM

Mon, Aug 17

Possible

5:00 PM

Mon, Aug 17

7:30 PM

Mon, Aug 17

Possible

6:00 PM

Mon, Aug 17

8:30 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

9:30 PM

Mon, Aug 17

Night

8:00 PM

Mon, Aug 17

10:30 PM

Mon, Aug 17

Night

9:00 PM

Mon, Aug 17

11:30 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

12:30 AM

Next day

Tue, Aug 18

Night

11:00 PM

Mon, Aug 17

1:30 AM

Next day

Tue, Aug 18

Night

Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.

On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.

Call planning

Best time to call Tehran from London

Compare typical business hours in London, United Kingdom and Tehran, Iran to find a practical time for calls, meetings or international coordination.

London

9:00 AM – 4:00 PM

United Kingdom

Best overlap

Tehran

11:30 AM – 6:30 PM

Iran

The best time to call Tehran from London is between 9:00 AM and 4:00 PM in London. This corresponds to 11:30 AM – 6:30 PM in Tehran.

Other reasonable windows

London

7:00 AM – 9:00 AM

Tehran

9:30 AM – 11:30 AM

London

4:00 PM – 7:00 PM

Tehran

6:30 PM – 9:30 PM

Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.

Time difference explained

London and Tehran time difference explained

Current local-time relationship

Tehran is currently 2 hours and 30 minutes ahead of London.

London uses Europe/London and currently has an offset of UTC+1. Tehran uses Asia/Tehran and currently has an offset of UTC+3:30.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 9:00 AM to 3:30 PM in London, corresponding to 11:30 AM–6:00 PM in Tehran.

Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.

Convert a specific time

Need more than the current difference?

Convert a specific date and local time between London and Tehran.

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Local clocks

Explore each city

Current time in London Current time in Tehran

FAQ

London to Tehran time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between London and Tehran.

What is the time difference between London and Tehran?

The current time difference between London and Tehran is 2h 30m. Tehran is currently 2 hours and 30 minutes ahead of London.

Is Tehran ahead of or behind London?

Tehran is currently 2 hours and 30 minutes ahead of London.

What time is it in Tehran when it is 9:00 AM in London?

Using the current UTC offsets, 9:00 AM in London corresponds to 11:30 AM in Tehran. The exact difference can change when daylight-saving rules change.

What is the best time to call Tehran from London?

Typical 9:00 AM–6:00 PM business hours overlap between 9:00 AM and 3:30 PM in London. This corresponds to 11:30 AM–6:00 PM in Tehran.

Can the time difference between London and Tehran change?

Yes. The time difference can change if London or Tehran changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Europe/London and Asia/Tehran for date-aware calculations.