DST periods of Iran (2019 ~ 2020)
| Year | Date | Type |
| 2019 | 2019-3-22 | Start of DST |
| 2019-9-21 | End of DST | |
| 2020 | 2020-3-21 | Start of DST |
| 2020-9-20 | End of DST |
Time zones currently being used in Iran
Iran is currently using 1 time zone , IRDT
| Offset | Time Zone | Example City | Current Time |
| UTC +04:30 | IRDT | Tehran | 23:45 Tue, 2019-09-17 |
Time zones to be used in Iran
| Offset | Time Zone | Commences |
| UTC +03:30 | IRST | 2019-09-21 |
Time of Cities in Iran
IRDT (UTC +04:30)
| City | Time |
|---|---|
| Tehran | 23:45 Tue, 2019-09-17 |
| Mashhad | 23:45 Tue, 2019-09-17 |
| Karaj | 23:45 Tue, 2019-09-17 |
| Isfahan | 23:45 Tue, 2019-09-17 |
| Tabriz | 23:45 Tue, 2019-09-17 |
| Shiraz | 23:45 Tue, 2019-09-17 |
| Qom | 23:45 Tue, 2019-09-17 |
| Ahvāz | 23:45 Tue, 2019-09-17 |
| Yazd | 23:45 Tue, 2019-09-17 |
| Kermanshah | 23:45 Tue, 2019-09-17 |
| Kerman | 23:45 Tue, 2019-09-17 |
| Urmia | 23:45 Tue, 2019-09-17 |
| Rašt | 23:45 Tue, 2019-09-17 |
| Zahedan | 23:45 Tue, 2019-09-17 |
| Arak | 23:45 Tue, 2019-09-17 |
| Ardabil | 23:45 Tue, 2019-09-17 |
| Hamadan | 23:45 Tue, 2019-09-17 |
| Kashan | 23:45 Tue, 2019-09-17 |
| Bandar Abbas | 23:45 Tue, 2019-09-17 |
| Sanandaj | 23:45 Tue, 2019-09-17 |
| Dezful | 23:45 Tue, 2019-09-17 |
| Eslamshahr | 23:45 Tue, 2019-09-17 |
| Zanjan | 23:45 Tue, 2019-09-17 |
| Qazvin | 23:45 Tue, 2019-09-17 |
| Gorgan | 23:45 Tue, 2019-09-17 |
| Khorramabad, Lorestan | 23:45 Tue, 2019-09-17 |
| Qaem Shahr | 23:45 Tue, 2019-09-17 |
| Nishapur | 23:45 Tue, 2019-09-17 |
| Sari | 23:45 Tue, 2019-09-17 |
| City | Time |
|---|---|
| Borujerd | 23:45 Tue, 2019-09-17 |
| Amol | 23:45 Tue, 2019-09-17 |
| Babol | 23:45 Tue, 2019-09-17 |
| Varamin | 23:45 Tue, 2019-09-17 |
| Khomeyni Shahr(Mehrbin مهربین)(marbin ماربین) | 23:45 Tue, 2019-09-17 |
| Ābādān | 23:45 Tue, 2019-09-17 |
| Sabzevar | 23:45 Tue, 2019-09-17 |
| Masjed Soleyman | 23:45 Tue, 2019-09-17 |
| Najafabad | 23:45 Tue, 2019-09-17 |
| Khoy | 23:45 Tue, 2019-09-17 |
| Bojnourd | 23:45 Tue, 2019-09-17 |
| Birjand | 23:45 Tue, 2019-09-17 |
| Qarchak | 23:45 Tue, 2019-09-17 |
| Sirjan | 23:45 Tue, 2019-09-17 |
| Bushehr | 23:45 Tue, 2019-09-17 |
| Andimeshk | 23:45 Tue, 2019-09-17 |
| Ilam | 23:45 Tue, 2019-09-17 |
| Malayer | 23:45 Tue, 2019-09-17 |
| Shahrud | 23:45 Tue, 2019-09-17 |
| Bukan | 23:45 Tue, 2019-09-17 |
| Shahr-e Kord | 23:45 Tue, 2019-09-17 |
| Maragheh مراغه | 23:45 Tue, 2019-09-17 |
| Gonbad-e Kavus | 23:45 Tue, 2019-09-17 |
| Mahabad | 23:45 Tue, 2019-09-17 |
| Saqqez | 23:45 Tue, 2019-09-17 |
| Zabol | 23:45 Tue, 2019-09-17 |
| Khorramshahr | 23:45 Tue, 2019-09-17 |
| Marvdasht | 23:45 Tue, 2019-09-17 |