World Time ZonesTime in Tehran: time zone and time difference
Last updated:
Time zone
Asia/TehranIran
UTC offsetUTC+3:30not in effect
Difference from Japan−5 h 30 min
Local time17:40Oct 9, 2026
Daylight saving time changes (2026–2027)
Tehran does not change its clocks in this period.
Japan time → time in Tehran
| Japan (JST) | Tehran |
|---|---|
| 00:00 | 18:30 (-1 d) |
| 01:00 | 19:30 (-1 d) |
| 02:00 | 20:30 (-1 d) |
| 03:00 | 21:30 (-1 d) |
| 04:00 | 22:30 (-1 d) |
| 05:00 | 23:30 (-1 d) |
| 06:00 | 00:30 |
| 07:00 | 01:30 |
| 08:00 | 02:30 |
| 09:00 | 03:30 |
| 10:00 | 04:30 |
| 11:00 | 05:30 |
| 12:00 | 06:30 |
| 13:00 | 07:30 |
| 14:00 | 08:30 |
| 15:00 | 09:30 |
| 16:00 | 10:30 |
| 17:00 | 11:30 |
| 18:00 | 12:30 |
| 19:00 | 13:30 |
| 20:00 | 14:30 |
| 21:00 | 15:30 |
| 22:00 | 16:30 |
| 23:00 | 17:30 |
Time difference to other cities
| City | UTC offset | Δ Tehran |
|---|---|---|
| Tokyo | UTC+9 | +5 h 30 min |
| Seoul | UTC+9 | +5 h 30 min |
| Beijing | UTC+8 | +4 h 30 min |
| Hong Kong | UTC+8 | +4 h 30 min |
| Taipei | UTC+8 | +4 h 30 min |
| Bangkok | UTC+7 | +3 h 30 min |
| Singapore | UTC+8 | +4 h 30 min |
| Jakarta | UTC+7 | +3 h 30 min |
| Manila | UTC+8 | +4 h 30 min |
| Ho Chi Minh City | UTC+7 | +3 h 30 min |
| Delhi | UTC+5:30 | +2 h |
| Dubai | UTC+4 | +30 min |
| Moscow | UTC+3 | −30 min |
| Istanbul | UTC+3 | −30 min |
| Cairo | UTC+3 | −30 min |
| London | UTC+1 | −2 h 30 min |
| Paris | UTC+2 | −1 h 30 min |
| Berlin | UTC+2 | −1 h 30 min |
| Madrid | UTC+2 | −1 h 30 min |
| Rome | UTC+2 | −1 h 30 min |
| New York City | UTC−4 | −7 h 30 min |
| Chicago | UTC−5 | −8 h 30 min |
| Los Angeles | UTC−7 | −10 h 30 min |
| São Paulo | UTC−3 | −6 h 30 min |
| Mexico City | UTC−6 | −9 h 30 min |
| Sydney | UTC+11 | +7 h 30 min |
| Honolulu | UTC−10 | −13 h 30 min |
Method
Offsets and daylight saving transitions are computed from the IANA time zone database (tzdata, public domain) bundled with Python; city coordinates and time zone assignment come from GeoNames (CC BY 4.0). Rules can change at short notice when governments change them; the page reflects the tzdata version at build time.
About this page
Tehran uses the time zone Asia/Tehran, currently UTC+3:30. Tehran is 5 h 30 min behind Japan.