Asian time zones:

IRST – Iran Standard Time

Time zone offset: UTC + 3:30 hours

IRST is 3 hours and 30 minutes ahead of Coordinated Universal Time (UTC)

Note that during summer daylight saving time/summer time is observed, and IRDT is used instead.

Time zone abbreviation: IRST

Full name is Iran Standard Time

Email time zone indicator: +0330

An email sent from someone in the IRST time zone will have the time zone listed as "+0330" in the headers of the email. (However, "+0330" does not have to be in IRST, as other time zones could have the same UTC offset).

For actual dates DST might be observed, look at the examples below

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Where and when is IRST observed?

Countries using IRST in the winter and IRDT during the summer

• Iran

Time zone maps are under development and will be available later

Example location in IRST

• Tehran - This time zone offset is used during winter in this location

Other time zones in Asia

Go directly through the links below, or see the Asia time zone list

• AFT - Afghanistan Time
• ALMT - Alma-Ata Time
• AMST - Armenia Summer Time
• AMT - Armenia Time
• ANAST - Anadyr Summer Time
• ANAT - Anadyr Time
• AQTT - Aqtobe Time
• AST - Arabia Standard Time
• AZST - Azerbaijan Summer Time
• AZT - Azerbaijan Time
• BNT - Brunei Darussalam Time
• BST - Bangladesh Standard Time
• BTT - Bhutan Time
• CST - China Standard Time
• EEST - Eastern European Summer Time
• EET - Eastern European Time
• GET - Georgia Standard Time
• GST - Gulf Standard Time
• HKT - Hong Kong Time
• HOVT - Hovd Time
• ICT - Indochina Time
• IDT - Israel Daylight Time
• IRDT - Iran Daylight Time
• IRKST - Irkutsk Summer Time
• IRKT - Irkutsk Time
• IST - India Standard Time
• IST - Israel Standard Time
• JST - Japan Standard Time
• KGT - Kyrgyzstan Time
• KRAST - Krasnoyarsk Summer Time
• KRAT - Krasnoyarsk Time
• KST - Korea Standard Time
• MAGST - Magadan Summer Time
• MAGT - Magadan Time
• MMT - Myanmar Time
• MVT - Maldives Time
• MYT - Malaysia Time
• NOVST - Novosibirsk Summer Time
• NOVT - Novosibirsk Time
• NPT - Nepal Time
• OMSST - Omsk Summer Time
• OMST - Omsk Standard Time
• PETST - Kamchatka Summer Time
• PETT - Kamchatka Time
• PHT - Philippine Time
• PKT - Pakistan Standard Time
• SGT - Singapore Time
• TJT - Tajikistan Time
• TLT - East Timor Time
• TMT - Turkmenistan Time
• ULAT - Ulaanbaatar Time
• UZT - Uzbekistan Time
• VLAST - Vladivostok Summer Time
• VLAT - Vladivostok Time
• WIB - Western Indonesian Time
• WIT - Eastern Indonesian Time
• WITA - Central Indonesian Time
• YAKST - Yakutsk Summer Time
• YAKT - Yakutsk Time
• YEKST - Yekaterinburg Summer Time
• YEKT - Yekaterinburg Time

Time zones in other regions

• Africa
• Antarctica
• Atlantic
• Australia
• Caribbean
• Central America
• Europe
• Indian Ocean
• Military
• North America
• Pacific
• South America

Related links

• Time zone abbreviations world-wide
• The World Clock - Time Zones - current time around the world
• The World Clock - Time Zone Converter - Convert between time zones