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Tokyo is +5h 30m ahead of Tehran
Quick converter
FROM
Tehran
Iran
UTC+03:30
TO
Tokyo
Japan
UTC+09:00
Date-aware conversion
Result
Fri, Jul 17, 2026 04:17
Tehran: Thursday, July 16, 2026 10:47 PM GMT+3:30 to Tokyo: Friday, July 17, 2026 4:17 AM GMT+9.
Tokyo is 5h 30m ahead of Tehran on this date
Every hour in Tehran and the corresponding time in Tokyo. Green rows indicate business hours in Tokyo.
Time zones
Tehran uses Asia/Tehran (GMT+3:30) and Tokyo uses Asia/Tokyo (GMT+9). 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 Tokyo. For teams across more cities, open the meeting planner and compare up to five locations.
Plan a meetingMeeting guidance
The easiest overlap starts around 9:00 AM and runs through 12:00 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
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.
Tokyo is located in Japan (Asia). It uses the Asia/Tokyo timezone with a standard offset of UTC+09:00. It does not observe Daylight Saving Time. See the full Tokyo time page for live clock and planning details.
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