Convert Coordinated Universal Time to Iran Standard Time - Quick & Accurate
Updates live every second
Hover over any hour to see corresponding time in both zones
To schedule a meeting between UTC and IRT:
Pro Tip: Schedule calls during the overlap window for optimal convenience for both time zones
| UTC Time | IRT Time | Context |
|---|---|---|
| 12:00 AM | 03:30 AM | Midnight UTC |
| 01:00 AM | 04:30 AM | Late Night |
| 02:00 AM | 05:30 AM | Late Night |
| 03:00 AM | 06:30 AM | Late Night |
| 04:00 AM | 07:30 AM | Late Night |
| 05:00 AM | 08:30 AM | Late Night |
| 06:00 AM | 09:30 AM | Early Morning UTC |
| 07:00 AM | 10:30 AM | Night Time |
| 08:00 AM | 11:30 AM | Night Time |
| 09:00 AM | 12:30 PM | Work Starts UTC |
| 10:00 AM | 01:30 PM | Night Time |
| 11:00 AM | 02:30 PM | Night Time |
UTC
UTC
Tehran
Asia/Tehran
IRT (Iran Standard Time) is 3.5 hours ahead of UTC (Coordinated Universal Time). This means when it's 12:00 PM in UTC (UTC), it's 3:30 PM in Tehran (IRT).
The best time to call from UTC to IRT is during overlapping business hours. For UTC callers, schedule between 9:00 AM - 12:00 PM UTC to ensure both parties are within standard business hours.
The time difference may change during daylight saving transitions if one region observes DST while the other doesn't. Coordinated Universal Time (UTC+0) and Iran Standard Time (UTC+3:30 (IRST) / UTC+4:30 (IRDT)) may have different DST schedules.
UTC includes cities like UTC. IRT includes cities like Tehran. Both time zones cover important business and cultural centers.
In 2025, DST in North America starts on March 9 at 2:00 AM and ends on November 2 at 2:00 AM. Other regions may have different DST schedules or not observe DST at all.