Tehran to London Time Converter
London is -2h 30m behind Tehran
Quick converter
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FROM
Tehran
Iran
UTC+03:30
TO
London
United Kingdom
UTC+01:00
Date-aware conversion
Convert a specific date and time
Result
Tue, May 26, 2026 10:28
Tehran: Tuesday, May 26, 2026 12:58 PM GMT+3:30 to London: Tuesday, May 26, 2026 10:28 AM GMT+1.
London is 2h 30m behind Tehran on this date
24-Hour Comparison
Every hour in Tehran and the corresponding time in London. Green rows indicate business hours in London.
Time zones
Tehran uses Asia/Tehran (GMT+3:30) and London uses Europe/London (GMT+1). The difference can shift during daylight saving changes, so checking the exact date matters.
Best use
Use the green rows to spot normal working hours in London. For teams across more cities, open the meeting planner and compare up to five locations.
Plan a meetingMeeting guidance
Best time for Tehran and London
The easiest overlap starts around 12:00 PM and runs through 5:00 PM in the source city, while the destination city is also inside normal working hours. For important calls, check the meeting date because the offset can change when either location enters or leaves daylight saving time.
Compare meeting hoursQuick examples
City context
About these cities
About Tehran
Tehran is located in Iran (Asia). It uses the Asia/Tehran timezone with a standard offset of UTC+03:30. It observes DST, switching between IRST and IRDT. See the full Tehran time page for live clock and planning details.
About London
London is located in United Kingdom (Europe). It uses the Europe/London timezone with a standard offset of UTC+01:00. It observes DST, switching between GMT and BST. See the full London time page for live clock and planning details.
Frequently Asked Questions
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