Time in IST and IRDT
The time difference between Indian Standard Time (IST) and Iran Daylight Time (IRDT) is 1 hour. Iran Daylight Time is 1 hour behind Indian Standard Time.
This means 9am IST is 8am IRDT and 5pm IST is 4pm IRDT.
Indian Standard Time
- The current local time in IST is 7:07 pm (July 18, 2026)
- IST time zone offset is UTC+05:30
Iran Daylight Time
- The current local time in IRDT is 6:07 pm (July 18, 2026)
- IRDT time zone offset is UTC+04:30
How to convert Indian Standard Time to Iran Daylight Time?
Subtract 1 hour from Indian Standard Time to get Iran Daylight Time.
Time in IST
00:00
Time in IRDT
00:00
Use the slider above to convert Indian Standard Time to Iran Daylight Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| IST | IRDT |
|---|---|
| 12am | 11pm |
| 1am | 12am |
| 2am | 1am |
| 3am | 2am |
| 4am | 3am |
| 5am | 4am |
| 6am | 5am |
| 7am | 6am |
| 8am | 7am |
| 9am | 8am |
| 10am | 9am |
| 11am | 10am |
| 12pm | 11am |
| 1pm | 12pm |
| 2pm | 1pm |
| 3pm | 2pm |
| 4pm | 3pm |
| 5pm | 4pm |
| 6pm | 5pm |
| 7pm | 6pm |
| 8pm | 7pm |
| 9pm | 8pm |
| 10pm | 9pm |
| 11pm | 10pm |