Time in GMT and JST
The time difference between Greenwich Mean Time (GMT) and Japan Standard Time (JST) is 9 hours. Japan Standard Time is 9 hours ahead of Greenwich Mean Time.
This means 9am GMT is 6pm JST and 5pm GMT is 2am JST (next day).
Greenwich Mean Time
- The current local time in GMT is 11:41 am (July 18, 2026)
- GMT time zone offset is UTC+00:00
Japan Standard Time
- The current local time in JST is 8:41 pm (July 18, 2026)
- JST time zone offset is UTC+09:00
How to convert Greenwich Mean Time to Japan Standard Time?
Add 9 hours to Greenwich Mean Time to get Japan Standard Time.
Time in GMT
00:00
Time in JST
00:00
Use the slider above to convert Greenwich Mean 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
| GMT | JST |
|---|---|
| 12am | 9am |
| 1am | 10am |
| 2am | 11am |
| 3am | 12pm |
| 4am | 1pm |
| 5am | 2pm |
| 6am | 3pm |
| 7am | 4pm |
| 8am | 5pm |
| 9am | 6pm |
| 10am | 7pm |
| 11am | 8pm |
| 12pm | 9pm |
| 1pm | 10pm |
| 2pm | 11pm |
| 3pm | 12am |
| 4pm | 1am |
| 5pm | 2am |
| 6pm | 3am |
| 7pm | 4am |
| 8pm | 5am |
| 9pm | 6am |
| 10pm | 7am |
| 11pm | 8am |