Time in GST and JST
The time difference between Gulf Standard Time (GST) and Japan Standard Time (JST) is 5 hours. Japan Standard Time is 5 hours ahead of Gulf Standard Time.
This means 9am GST is 2pm JST and 5pm GST is 10pm JST.
Gulf Standard Time
- The current local time in GST is 2:43 am (July 3, 2026)
- GST time zone offset is UTC+04:00
Japan Standard Time
- The current local time in JST is 7:43 am (July 3, 2026)
- JST time zone offset is UTC+09:00
How to convert Gulf Standard Time to Japan Standard Time?
Add 5 hours to Gulf Standard Time to get Japan Standard Time.
Time in GST
00:00
Time in JST
00:00
Use the slider above to convert Gulf Standard Time to Japan 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
| GST | JST |
|---|---|
| 12am | 5am |
| 1am | 6am |
| 2am | 7am |
| 3am | 8am |
| 4am | 9am |
| 5am | 10am |
| 6am | 11am |
| 7am | 12pm |
| 8am | 1pm |
| 9am | 2pm |
| 10am | 3pm |
| 11am | 4pm |
| 12pm | 5pm |
| 1pm | 6pm |
| 2pm | 7pm |
| 3pm | 8pm |
| 4pm | 9pm |
| 5pm | 10pm |
| 6pm | 11pm |
| 7pm | 12am |
| 8pm | 1am |
| 9pm | 2am |
| 10pm | 3am |
| 11pm | 4am |