MeanwhileGMT to JST converter
Greenwich Mean Time (the same as UTC, all year) to Japan Time (Tokyo, Osaka).
JST is 9 h ahead of GMT.
9:00 AM GMT = 6:00 PM JST same day
Best time to meet
No hour falls inside 9 AM to 5 PM in both places. The least painful: around 7:00 AM GMT, which is 4:00 PM JST.
GMT to JST time table
For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.
| GMT | JST |
|---|---|
| 12:00 AM GMT | 9:00 AM JST |
| 1:00 AM GMT | 10:00 AM JST |
| 2:00 AM GMT | 11:00 AM JST |
| 3:00 AM GMT | 12:00 PM JST |
| 4:00 AM GMT | 1:00 PM JST |
| 5:00 AM GMT | 2:00 PM JST |
| 6:00 AM GMT | 3:00 PM JST |
| 7:00 AM GMT | 4:00 PM JST |
| 8:00 AM GMT | 5:00 PM JST |
| 9:00 AM GMT | 6:00 PM JST |
| 10:00 AM GMT | 7:00 PM JST |
| 11:00 AM GMT | 8:00 PM JST |
| 12:00 PM GMT | 9:00 PM JST |
| 1:00 PM GMT | 10:00 PM JST |
| 2:00 PM GMT | 11:00 PM JST |
| 3:00 PM GMT | 12:00 AM JST next day |
| 4:00 PM GMT | 1:00 AM JST next day |
| 5:00 PM GMT | 2:00 AM JST next day |
| 6:00 PM GMT | 3:00 AM JST next day |
| 7:00 PM GMT | 4:00 AM JST next day |
| 8:00 PM GMT | 5:00 AM JST next day |
| 9:00 PM GMT | 6:00 AM JST next day |
| 10:00 PM GMT | 7:00 AM JST next day |
| 11:00 PM GMT | 8:00 AM JST next day |
Quick answers
- 9:00 AM GMT = 6:00 PM JST
- 12:00 PM GMT = 9:00 PM JST
- 3:00 PM GMT = 12:00 AM JST (next day)
- 5:00 PM GMT = 2:00 AM JST (next day)
- 9:00 AM JST = 12:00 AM GMT
- 12:00 PM JST = 3:00 AM GMT
- 5:00 PM JST = 8:00 AM GMT
Does the gap change during the year?
No. JST is 9 h ahead of GMT all year.
GMT does not change its clocks. JST does not change its clocks.
About GMT and JST
GMT here means Greenwich Mean Time, the clock in the same as UTC, all year. Right now it is UTC+0. It has no daylight saving.
JST here means Japan Time, the clock in Tokyo, Osaka. Right now it is UTC+9. It has no daylight saving.
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