Asia · Iran
Current time in Tehran
Iran Standard Time.
Sunday, May 31, 2026
Daylight saving
Not observed
This zone has no seasonal clock change.
About Tehran time
Tehran keeps one clock.
Tehran follows Iran's unique half‑hour offset, so meetings, commutes, and office hours drift about half an hour earlier than you’d expect from a “+03:00” zone. Most people here simply accept the plus‑30 as part of daily rhythm, syncing calendars and video calls to keep in step.
Frequently asked questions
Common questions about Tehran's time zone, daylight saving rules, and scheduling across it. Can't find what you need? Email [email protected].
- What is the current UTC offset in Tehran?
- The current UTC offset is +03:30 for standard time, in line with Iran Standard Time (IRST).
- Does Tehran observe daylight saving time?
- No, Tehran does not currently observe daylight saving time; Iran discontinued DST in 2023.
- Why is Tehran’s timezone unusual?
- Tehran uses a half-hour offset (+03:30), which is less common worldwide and complicates scheduling with many cities.
- How should remote teams plan calls with Tehran?
- Confirm the extra 30 minutes beyond standard UTC+3 and always double-check local meeting invites to avoid half-hour confusion.
- What are Tehran’s standard working hours?
- Business hours are typically 09:00–17:00 local time, though many offices start earlier in summer.
- How does Tehran’s daylight vary across the year?
- Summer days can have up to 14 hours of daylight, winter days drop to about 10, affecting commuting and office culture.
- Is Tehran in the list of countries using half-hour offsets?
- Yes, Iran is one of few countries using a half-hour offset, making its timezone distinctive and a useful talking point for remote teams.
- What local holidays affect working hours?
- Nowruz (Persian New Year, around March 21) and Islamic holidays often bring week-long breaks, so plan ahead.
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