IRST Time Zone Converter — Iran Standard Time (Tehran) Time Difference
Drag the interactive slider or click the time display to set a time in this IRST time zone converter (Iran Standard Time, UTC+3:30) — then select any city below to instantly see the exact IRST time difference and current local time across 429 cities. Whether you need to find overlapping work hours with a colleague in Tehran, schedule an international call from IRST, or check what time it is anywhere relative to UTC+3:30 — this converter handles daylight saving time and UTC offset changes automatically. Also see:Perth time zone difference.
IRST
Iran Standard Time
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IRST — Iran Standard Time (UTC+3:30)
- Abbreviation
- IRST
- UTC Offset
- UTC+3:30
- City
- Tehran
- Country
- Iran
What Time Is It Now in Tehran?
Live current local time in Tehran, Iran — IRST (UTC+3:30). Updates every second. Related:Tomsk timezone converter online.
What Is IRST (Iran Standard Time)?
IRST stands for Iran Standard Time and follows the UTC+3:30 UTC offset. Tehran in Iran is the primary reference city for this time zone. The IRST time zone converter above lets you compare Tehran time with any city in the world — use the "Add timezone" search to build a multi-city world clock, pick a date to check daylight saving time transitions, and switch between 12-hour and 24-hour formats for a clear international time view. See also:time difference from +08.
Why Trust This IRST Time Zone Converter?
ConvertFlash uses the IANA Time Zone Database — the same authoritative source that powers your phone, browser, and every major operating system — so every IRST time conversion handles daylight saving time transitions, half-hour and quarter-hour UTC offsets, and historical time zone changes automatically. The live world clock updates every second, and all conversion tables regenerate correctly for any past or future date you select.