IST to IRT Converter
Iran Standard Time · Tehran, Isfahan, Shiraz, Mashhad
Also convert in reverse: IRT to IST →
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IST to IRT Conversion Table
Common IST times converted to Iran Standard Time
| IST (UTC+05:30) | IRT (UTC+03:30) | Note |
|---|---|---|
| 12:00 AM (midnight) | 10:00 PM | −1 day |
| 6:00 AM | 4:00 AM | |
| 9:00 AM | 7:00 AM | |
| 12:00 PM (noon) | 10:00 AM | |
| 3:00 PM | 1:00 PM | |
| 6:00 PM | 4:00 PM | |
| 9:00 PM | 7:00 PM | |
| 11:30 PM | 9:30 PM |
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About Iran Standard Time
How to convert IST to IRT
Indian Standard Time (IST) is UTC+5:30. Iran Standard Time is UTC+03:30. To convert IST to IRT, subtract 2 hours from your IST time.
For example, 12:00 PM IST = 10:00 AM IRT .
Time Difference: India (IST) and Iran
Indian Standard Time (IST) is UTC+5:30. Iran Standard Time is UTC+03:30, making the difference IST −2 hrs. India does not observe Daylight Saving Time — IST stays fixed at UTC+5:30 year-round. If Iran observes DST, the offset between IST and IRT changes by 1 hour during the DST period (typically spring–autumn in the Northern Hemisphere).
⏰ Best overlap: 12:00 IST = 10:00 AM IRT
Common IST Times in IRT
| India (IST) | Iran — IRT | Day |
|---|---|---|
| 9:00 AM IST (India morning) | 7:00 AM IRT | same day |
| 12:00 PM IST (India noon) | 10:00 AM IRT | same day |
| 3:00 PM IST (India afternoon) | 1:00 PM IRT | same day |
| 6:00 PM IST (India evening) | 4:00 PM IRT | same day |
| 9:00 PM IST (India night) | 7:00 PM IRT | same day |
Convert IRT times to Indian Standard Time: IRT to IST Converter →