9:23 AM
Thursday, August 13, 2026
UTC+09:00Fixed offset
Time Zone Converter
JST to GMTTime Converter
Convert Japan Standard Time to Greenwich Mean Time, compare their live UTC offsets and explore a complete 24-hour conversion table.
Live clocksDST aware24-hour table
Live comparison
Current local times
From
JST
Japan Standard Time
To
GMT
Greenwich Mean Time
Enter a local date and time using JST.
GMT
12:23 AM
Thursday, August 13, 2026
UTC+00:00Fixed offset
Time difference
GMT is 9 hours behind JST
Hourly comparison
24 hours24-hour conversion table
Compare each hour in JST with GMT.
| Hour | JST | GMT | Difference |
|---|---|---|---|
| 0 | 9:23 AM Thursday, August 13, 2026 | 12:23 AM Thursday, August 13, 2026 | -9h |
| 1 | 10:23 AM Thursday, August 13, 2026 | 1:23 AM Thursday, August 13, 2026 | -9h |
| 2 | 11:23 AM Thursday, August 13, 2026 | 2:23 AM Thursday, August 13, 2026 | -9h |
| 3 | 12:23 PM Thursday, August 13, 2026 | 3:23 AM Thursday, August 13, 2026 | -9h |
| 4 | 1:23 PM Thursday, August 13, 2026 | 4:23 AM Thursday, August 13, 2026 | -9h |
| 5 | 2:23 PM Thursday, August 13, 2026 | 5:23 AM Thursday, August 13, 2026 | -9h |
| 6 | 3:23 PM Thursday, August 13, 2026 | 6:23 AM Thursday, August 13, 2026 | -9h |
| 7 | 4:23 PM Thursday, August 13, 2026 | 7:23 AM Thursday, August 13, 2026 | -9h |
| 8 | 5:23 PM Thursday, August 13, 2026 | 8:23 AM Thursday, August 13, 2026 | -9h |
| 9 | 6:23 PM Thursday, August 13, 2026 | 9:23 AM Thursday, August 13, 2026 | -9h |
| 10 | 7:23 PM Thursday, August 13, 2026 | 10:23 AM Thursday, August 13, 2026 | -9h |
| 11 | 8:23 PM Thursday, August 13, 2026 | 11:23 AM Thursday, August 13, 2026 | -9h |
| 12 | 9:23 PM Thursday, August 13, 2026 | 12:23 PM Thursday, August 13, 2026 | -9h |
| 13 | 10:23 PM Thursday, August 13, 2026 | 1:23 PM Thursday, August 13, 2026 | -9h |
| 14 | 11:23 PM Thursday, August 13, 2026 | 2:23 PM Thursday, August 13, 2026 | -9h |
| 15 | 12:23 AM Friday, August 14, 2026 | 3:23 PM Thursday, August 13, 2026 | -9h |
| 16 | 1:23 AM Friday, August 14, 2026 | 4:23 PM Thursday, August 13, 2026 | -9h |
| 17 | 2:23 AM Friday, August 14, 2026 | 5:23 PM Thursday, August 13, 2026 | -9h |
| 18 | 3:23 AM Friday, August 14, 2026 | 6:23 PM Thursday, August 13, 2026 | -9h |
| 19 | 4:23 AM Friday, August 14, 2026 | 7:23 PM Thursday, August 13, 2026 | -9h |
| 20 | 5:23 AM Friday, August 14, 2026 | 8:23 PM Thursday, August 13, 2026 | -9h |
| 21 | 6:23 AM Friday, August 14, 2026 | 9:23 PM Thursday, August 13, 2026 | -9h |
| 22 | 7:23 AM Friday, August 14, 2026 | 10:23 PM Thursday, August 13, 2026 | -9h |
| 23 | 8:23 AM Friday, August 14, 2026 | 11:23 PM Thursday, August 13, 2026 | -9h |
About JST
The standard time used throughout Japan.
- Full name
- Japan Standard Time
- Type
- Fixed UTC offset
- Regions
- Japan
Target time zone
About GMT
A time standard based on the mean solar time at Greenwich, London.
- Full name
- Greenwich Mean Time
- Type
- Fixed UTC offset
- Regions
- United Kingdom, Iceland, Western Africa
Reverse this conversion
Convert GMT back to JST.
FAQ
JST to GMT time FAQ
Common questions about converting Japan Standard Time to Greenwich Mean Time, their UTC offsets and daylight-saving behavior.
What is the time difference between JST and GMT?
GMT is 9 hours behind JST on this date.
What time is 9:00 AM JST in GMT?
When it is 9:00 AM in JST, it is 12:00 AM in GMT on Thursday, August 13, 2026.
Is GMT ahead of JST?
No. GMT is currently 9 hours behind JST.
Do JST and GMT use daylight saving time?
JST is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date. GMT is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date.
Where are JST and GMT used?
JST is associated with Japan. GMT is associated with United Kingdom, Iceland, Western Africa. Time-zone abbreviations can be ambiguous, so TimeInOne uses the specific definitions shown on this page.