Iran
Tehran
Current time
Monday, June 22, 2026
- Capital
- Tehran
- Time zone
- Asia/Tehran
- UTC offset
- UTC+3:30
Iran operates on Iran Standard Time (IRST), which is UTC+3:30 year-round. Unlike many countries, Iran does not observe daylight saving time (DST), maintaining a consistent time offset. This makes scheduling with international partners predictable, though the half-hour offset can require extra attention when coordinating with regions on full-hour time zones.
Time Zone Details
Iran follows a single time zone (Asia/Tehran) across the entire country, including its capital, Tehran. The UTC+3:30 offset is unique, as most neighboring countries use full-hour offsets (e.g., UTC+3 in Iraq or UTC+4 in the UAE). Businesses scheduling calls or meetings with Iranian counterparts should note this difference to avoid timing errors. Government offices and many businesses operate Sunday to Thursday, with Friday and Saturday as the weekend.
During Ramadan, working hours in Iran may shift earlier to accommodate fasting schedules, though the time zone itself remains unchanged. International travelers or remote collaborators should confirm adjusted business hours in advance. Public holidays, such as Nowruz (Persian New Year), can also affect availability but do not alter the time zone.
Scheduling with Global Partners
When coordinating with Iran from the US, Europe, or Asia, the half-hour offset can create uncommon time differences. For example, Tehran is 8.5 hours ahead of New York (UTC-5), 2.5 hours ahead of Berlin (UTC+1), and 4 hours behind Beijing (UTC+8). Digital calendars and world clock tools often display these offsets correctly, but manual calculations should account for the 30-minute difference.
For virtual meetings, mornings in Iran (9:00 AM IRST) often align with late evenings in East Asia (1:30 PM CST) or early mornings in Europe (6:30 AM CET). Companies with Iranian clients or teams may need to adjust standard meeting windows to accommodate the time gap while respecting local business customs.
FAQ
- Does Iran observe daylight saving time?
- No, Iran does not use daylight saving time. The country maintains a consistent UTC+3:30 offset throughout the year.
- What is the time difference between Iran and India?
- Iran is 1 hour behind India (IRST is UTC+3:30, IST is UTC+5:30). When it's noon in Tehran, it's 1:30 PM in New Delhi.
- Are there multiple time zones in Iran?
- No, Iran uses a single time zone (Asia/Tehran) nationwide, including all cities and regions.