12:23 AM
Thursday, August 13, 2026
UTC+00:00Fixed offset
Time Zone Converter
GMT to JSTTime Converter
Convert Greenwich Mean Time to Japan Standard 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
GMT
Greenwich Mean Time
To
JST
Japan Standard Time
Enter a local date and time using GMT.
JST
9:23 AM
Thursday, August 13, 2026
UTC+09:00Fixed offset
Time difference
JST is 9 hours ahead of GMT
Hourly comparison
24 hours24-hour conversion table
Compare each hour in GMT with JST.
| Hour | GMT | JST | Difference |
|---|---|---|---|
| 0 | 12:23 AM Thursday, August 13, 2026 | 9:23 AM Thursday, August 13, 2026 | +9h |
| 1 | 1:23 AM Thursday, August 13, 2026 | 10:23 AM Thursday, August 13, 2026 | +9h |
| 2 | 2:23 AM Thursday, August 13, 2026 | 11:23 AM Thursday, August 13, 2026 | +9h |
| 3 | 3:23 AM Thursday, August 13, 2026 | 12:23 PM Thursday, August 13, 2026 | +9h |
| 4 | 4:23 AM Thursday, August 13, 2026 | 1:23 PM Thursday, August 13, 2026 | +9h |
| 5 | 5:23 AM Thursday, August 13, 2026 | 2:23 PM Thursday, August 13, 2026 | +9h |
| 6 | 6:23 AM Thursday, August 13, 2026 | 3:23 PM Thursday, August 13, 2026 | +9h |
| 7 | 7:23 AM Thursday, August 13, 2026 | 4:23 PM Thursday, August 13, 2026 | +9h |
| 8 | 8:23 AM Thursday, August 13, 2026 | 5:23 PM Thursday, August 13, 2026 | +9h |
| 9 | 9:23 AM Thursday, August 13, 2026 | 6:23 PM Thursday, August 13, 2026 | +9h |
| 10 | 10:23 AM Thursday, August 13, 2026 | 7:23 PM Thursday, August 13, 2026 | +9h |
| 11 | 11:23 AM Thursday, August 13, 2026 | 8:23 PM Thursday, August 13, 2026 | +9h |
| 12 | 12:23 PM Thursday, August 13, 2026 | 9:23 PM Thursday, August 13, 2026 | +9h |
| 13 | 1:23 PM Thursday, August 13, 2026 | 10:23 PM Thursday, August 13, 2026 | +9h |
| 14 | 2:23 PM Thursday, August 13, 2026 | 11:23 PM Thursday, August 13, 2026 | +9h |
| 15 | 3:23 PM Thursday, August 13, 2026 | 12:23 AM Friday, August 14, 2026 | +9h |
| 16 | 4:23 PM Thursday, August 13, 2026 | 1:23 AM Friday, August 14, 2026 | +9h |
| 17 | 5:23 PM Thursday, August 13, 2026 | 2:23 AM Friday, August 14, 2026 | +9h |
| 18 | 6:23 PM Thursday, August 13, 2026 | 3:23 AM Friday, August 14, 2026 | +9h |
| 19 | 7:23 PM Thursday, August 13, 2026 | 4:23 AM Friday, August 14, 2026 | +9h |
| 20 | 8:23 PM Thursday, August 13, 2026 | 5:23 AM Friday, August 14, 2026 | +9h |
| 21 | 9:23 PM Thursday, August 13, 2026 | 6:23 AM Friday, August 14, 2026 | +9h |
| 22 | 10:23 PM Thursday, August 13, 2026 | 7:23 AM Friday, August 14, 2026 | +9h |
| 23 | 11:23 PM Thursday, August 13, 2026 | 8:23 AM Friday, August 14, 2026 | +9h |
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
Target time zone
About JST
The standard time used throughout Japan.
- Full name
- Japan Standard Time
- Type
- Fixed UTC offset
- Regions
- Japan
Reverse this conversion
Convert JST back to GMT.
FAQ
GMT to JST time FAQ
Common questions about converting Greenwich Mean Time to Japan Standard Time, their UTC offsets and daylight-saving behavior.
What is the time difference between GMT and JST?
JST is 9 hours ahead of GMT on this date.
What time is 9:00 AM GMT in JST?
When it is 9:00 AM in GMT, it is 6:00 PM in JST on Thursday, August 13, 2026.
Is JST ahead of GMT?
Yes. JST is currently 9 hours ahead of GMT.
Do GMT and JST use daylight saving time?
GMT is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date. JST is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date.
Where are GMT and JST used?
GMT is associated with United Kingdom, Iceland, Western Africa. JST is associated with Japan. Time-zone abbreviations can be ambiguous, so TimeInOne uses the specific definitions shown on this page.