Where the Asia/Tehran time zone is used
Countries: 🇮🇷 Iran.
Also known in software as: Iran.
Largest cities on Asia/Tehran
TehranTehran
MashhadRazavi Khorasan
IsfahanIsfahan
KarajAlborz Province
TabrizEast Azerbaijan
ShirazFars
QomQom Province
AhvazKhuzestan
KermanshahKermanshah Province
RashtGilan Province
KermanKerman
OrūmīyehWest Azerbaijan
Asia/Tehran time zone
Iran Time
Iran Standard Time (UTC+3:30)
IANA: Asia/Tehran · UTC+3:30
Daylight saving time in Asia/Tehran
Asia/Tehran does not use daylight saving time. The offset stays UTC+3:30 all year.
Sunrise and sunset in Asia/Tehran today
Sunrise 05:57 · Sunset 17:49
Daylight 11h 52m · Solar noon 11:53
Time in Asia/Tehran vs major world cities
| City | Local time | Difference from Asia/Tehran |
|---|
| New York | Thu | 7.5 hours behind |
| Los Angeles | Thu | 10.5 hours behind |
| London | Thu | 2.5 hours behind |
| Paris | Thu | 1.5 hours behind |
| Dubai | Thu | 0.5 hours ahead |
| Mumbai | Thu | 2 hours ahead |
| Singapore | Fri | 4.5 hours ahead |
| Tokyo | Fri | 5.5 hours ahead |
| Sydney | Fri | 6.5 hours ahead |
| Johannesburg | Thu | 1.5 hours behind |
| São Paulo | Thu | 6.5 hours behind |
| Chicago | Thu | 8.5 hours behind |
What time zone is Asia/Tehran in?
Clocks in Asia/Tehran run on Iran Time (UTC+3:30, UTC+3:30); software knows the zone as Asia/Tehran.
Does Asia/Tehran observe daylight saving time?
No. Asia/Tehran keeps UTC+3:30 all year, so its time difference with places that do change their clocks shifts by an hour twice a year.
Asia/Tehran in software and databases
Older software may still use Iran; these are aliases of Asia/Tehran and give identical times.
Standard offset UTC+3:30, no daylight saving time (as of 2026).
October 2026 calendar for Asia/Tehran
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|
| | | 1 | 2 | 3 | 4 |
| 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 | 31 | |
Frequently asked questions about Asia/Tehran
What time zone is Asia/Tehran in?
Iran Time (UTC+3:30), UTC+3:30; IANA zone Asia/Tehran.
Does Asia/Tehran have daylight saving time?
No, it stays on UTC+3:30 all year.