Skip to content
Open the map

Asia/Tehran

Asia/Tehran is the IANA time zone for Iran.

UTC+03:30

Tue, Sep 29 UTC+3:30 IRST

Offsets and daylight saving time

Standard offset
UTC+03:30
Rule
No daylight saving time: UTC+3:30 all year.

No clock changes are scheduled in the next three years.

Names

Generic name
Iran Standard Time
Abbreviation
IRST
Long name
Iran Standard Time
Aliases
Iran (old ids that resolve to Asia/Tehran)

Use it in code

// JavaScript
new Intl.DateTimeFormat('en-US', { timeZone: 'Asia/Tehran' })

# Python
from zoneinfo import ZoneInfo
ZoneInfo('Asia/Tehran')

-- PostgreSQL
SELECT now() AT TIME ZONE 'Asia/Tehran';

Cities in Asia/Tehran

Also in this zone: Qom, Ahvaz, Kermanshah, Rasht, Kerman, Orūmīyeh, Zahedan, Hamadān, Arāk, Yazd, Eslamshahr, Ardabīl.

Offset history since 1970

  • 1970–1976: UTC+3:30
  • 1977: UTC+3:30, UTC+4 and UTC+4:30 during the year
  • 1978: UTC+3:30, UTC+4 and UTC+5 during the year
  • 1979–1980: UTC+3:30 and UTC+4:30 each year
  • 1981–1990: UTC+3:30
  • 1991–2005: UTC+3:30 and UTC+4:30 each year
  • 2006–2007: UTC+3:30
  • 2008–2022: UTC+3:30 and UTC+4:30 each year
  • 2023–2026: UTC+3:30

Open in the map →