Time in IRST and GST
The time difference between Iran Standard Time (IRST) and Gulf Standard Time (GST) is 30 minutes. Gulf Standard Time is 30 minutes ahead of Iran Standard Time.
This means 9am IRST is 9:30am GST and 5pm IRST is 5:30pm GST.
Iran Standard Time
- The current local time in IRST is 2:14 am (July 19, 2026)
- IRST time zone offset is UTC+03:30
Gulf Standard Time
- The current local time in GST is 2:44 am (July 19, 2026)
- GST time zone offset is UTC+04:00
How to convert Iran Standard Time to Gulf Standard Time?
Add 30 minutes to Iran Standard Time to get Gulf Standard Time.
Time in IRST
00:00
Time in GST
00:00
Use the slider above to convert Iran Standard Time to Gulf Standard 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
| IRST | GST |
|---|---|
| 12am | 0:30am |
| 1am | 1:30am |
| 2am | 2:30am |
| 3am | 3:30am |
| 4am | 4:30am |
| 5am | 5:30am |
| 6am | 6:30am |
| 7am | 7:30am |
| 8am | 8:30am |
| 9am | 9:30am |
| 10am | 10:30am |
| 11am | 11:30am |
| 12pm | 12:30pm |
| 1pm | 1:30pm |
| 2pm | 2:30pm |
| 3pm | 3:30pm |
| 4pm | 4:30pm |
| 5pm | 5:30pm |
| 6pm | 6:30pm |
| 7pm | 7:30pm |
| 8pm | 8:30pm |
| 9pm | 9:30pm |
| 10pm | 10:30pm |
| 11pm | 11:30pm |