JST to GMT time difference
GMT is 9 hours behind JST.
Quick examples: 9:00 AM JST = 12:00 AM GMT · 12:00 PM JST = 3:00 AM GMT · 5:00 PM JST = 8:00 AM GMT
JST to GMT conversion table
| Japan Standard Time (JST) | Greenwich Mean Time (GMT) |
|---|---|
| 12:00 AM JST | 3:00 PM GMT (previous day) |
| 1:00 AM JST | 4:00 PM GMT (previous day) |
| 2:00 AM JST | 5:00 PM GMT (previous day) |
| 3:00 AM JST | 6:00 PM GMT (previous day) |
| 4:00 AM JST | 7:00 PM GMT (previous day) |
| 5:00 AM JST | 8:00 PM GMT (previous day) |
| 6:00 AM JST | 9:00 PM GMT (previous day) |
| 7:00 AM JST | 10:00 PM GMT (previous day) |
| 8:00 AM JST | 11:00 PM GMT (previous day) |
| 9:00 AM JST | 12:00 AM GMT |
| 10:00 AM JST | 1:00 AM GMT |
| 11:00 AM JST | 2:00 AM GMT |
| 12:00 PM JST | 3:00 AM GMT |
| 1:00 PM JST | 4:00 AM GMT |
| 2:00 PM JST | 5:00 AM GMT |
| 3:00 PM JST | 6:00 AM GMT |
| 4:00 PM JST | 7:00 AM GMT |
| 5:00 PM JST | 8:00 AM GMT |
| 6:00 PM JST | 9:00 AM GMT |
| 7:00 PM JST | 10:00 AM GMT |
| 8:00 PM JST | 11:00 AM GMT |
| 9:00 PM JST | 12:00 PM GMT |
| 10:00 PM JST | 1:00 PM GMT |
| 11:00 PM JST | 2:00 PM GMT |
How to convert JST to GMT
- Pick a date and time in Japan Standard Time.
- The matching Greenwich Mean Time time appears instantly on the right.
- Use the ⇄ button to convert GMT to JST instead.
About Japan Standard Time and Greenwich Mean Time
Japan Standard Time (JST) is used in Tokyo, Osaka and all of Japan. Greenwich Mean Time (GMT) is used in the Greenwich meridian (London in winter, Iceland, and West Africa).
Related time zone converters
GMT to JSTJST to PSTJST to MSTJST to CSTJST to ESTJST to UTCJST to BSTPST to GMTMST to GMTCST to GMTEST to GMT
Frequently asked questions
What is the time difference between JST and GMT?
GMT is 9 hours behind JST.
How do I convert JST to GMT?
Subtract 9 hours to the JST time. For example, 12:00 PM JST is 3:00 AM GMT.
Where is JST used?
Japan Standard Time is used in Tokyo, Osaka and all of Japan.
Where is GMT used?
Greenwich Mean Time is used in the Greenwich meridian (London in winter, Iceland, and West Africa).
Does this converter handle daylight saving time?
Yes. The converter uses the official time zone database, so it automatically applies daylight saving time for the date you pick.