Tokyo ↔ Iran — time offset
Tokyo is 5 hours 30 minutes ahead of Iran. Midday in Tokyo lines up with 06:00 in Iran.
Tokyo is in the Asia/Tokyo timezone. Iran is in Asia/Tehran. The difference is 5.5 hours 30 minutes.
Mutual working hours
There is a 2.5-hour window each day where both Tokyo and Iran are within standard business hours (09:00–17:00).
00:0006:0012:0018:0024:00
When to schedule across time zones
Both Tokyo and Iran are in standard hours simultaneously for 2.5h per day.
15:00 Tokyo / 09:00 Tehran✓ Both working
16:00 Tokyo / 10:00 Tehran✓ Both working
Based on standard 09:00–17:00 working hours in each location's local time.
Upcoming public holidays
Tokyo4 holidays
Sep 23Autumnal Equinox DayTODAY
Oct 12Sports Day
Nov 3Culture Day
Nov 23Labour Thanksgiving Day
Iran
No upcoming public holidays this year.
How to work with Tokyo and Iran time zones
Working across Tokyo (Japan) and Iran (Iran) involves a 5.5-hour gap. The good news: there is a 2.5-hour mutual window in standard business hours that lets both sides collaborate without anyone joining at an unreasonable hour.
💡 How to schedule across these time zones
✅15:00–16:00 in Tokyo = 09:00–10:00 in Iran. Both sides are in standard business hours during this window.
✅16:00–17:00 in Tokyo = 10:00–11:00 in Iran. Both sides are in standard business hours during this window.
DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.
Get the Extension — Free →Use the time slider above to find the exact equivalent time for any moment in Tokyo. The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.
