Offset
The time difference between Iran Standard Time and India Standard Time is 2 hours.
Iran Standard Time (IRST) is behind India Standard Time (IST).
IRST: UTC+3:30
IST: UTC+5:30
Neither Iran Standard Time nor India Standard Time is currently observing daylight saving time.
When to schedule
Business-hours overlap: 9 AM–3 PM in Iran Standard Time (11 AM–5 PM in India Standard Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 12:00 PM Iran Standard Time (2:00 PM India Standard Time).
About these zones
Iran Standard Time is also known as IRST. To call Iran, dial +98.
India Standard Time is also known as IST. To call India, dial +91.
India Standard Time is approximately 1,750 miles southeast of Iran Standard Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| IRST | IST | Day |
|---|---|---|
| 12:00 am | 2:00 am | Same day |
| 1:00 am | 3:00 am | Same day |
| 2:00 am | 4:00 am | Same day |
| 3:00 am | 5:00 am | Same day |
| 4:00 am | 6:00 am | Same day |
| 5:00 am | 7:00 am | Same day |
| 6:00 am | 8:00 am | Same day |
| 7:00 am | 9:00 am | Same day |
| 8:00 am | 10:00 am | Same day |
| 9:00 am | 11:00 am | Same day |
| 10:00 am | 12:00 pm | Same day |
| 11:00 am | 1:00 pm | Same day |
| 12:00 pm | 2:00 pm | Same day |
| 1:00 pm | 3:00 pm | Same day |
| 2:00 pm | 4:00 pm | Same day |
| 3:00 pm | 5:00 pm | Same day |
| 4:00 pm | 6:00 pm | Same day |
| 5:00 pm | 7:00 pm | Same day |
| 6:00 pm | 8:00 pm | Same day |
| 7:00 pm | 9:00 pm | Same day |
| 8:00 pm | 10:00 pm | Same day |
| 9:00 pm | 11:00 pm | Same day |
| 10:00 pm | 12:00 am | +1 day |
| 11:00 pm | 1:00 am | +1 day |
Daylight saving time
Neither Iran Standard Time nor India Standard Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 4:50 AM
- Sunset
- 7:18 PM
- Day length
- 14h 28m
- Sunrise
- 6:01 AM
- Sunset
- 7:15 PM
- Day length
- 13h 14m
Daylight overlap: 12h 25m — 4:50 AM–5:15 PM in Iran Standard Time (6:50 AM–7:15 PM in India Standard Time). Both locations are in daylight during this window.
Cities in these zones
Cities in India Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Iran Standard Time
- IKA
- THR
- MHD
- IFN
- PYK
- TBZ
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Related conversions
Common conversions
- What is 9:00 am IRST in IST?
- 9:00 am IRST is 11:00 am IST.
- What is 12:00 pm IRST in IST?
- 12:00 pm IRST is 2:00 pm IST.
- What is 12:30 pm IRST in IST?
- 12:30 pm IRST is 2:30 pm IST.
- What is 2:00 pm IRST in IST?
- 2:00 pm IRST is 4:00 pm IST.
- What is 5:00 pm IRST in IST?
- 5:00 pm IRST is 7:00 pm IST.
- What is 11:30 pm IRST in IST?
- 11:30 pm IRST is 1:30 am IST, the next day.