GMT to Osaka Time Converter
JST is 9 hours ahead of GMT. 9:00 AM GMT = 6:00 PM JST.
JST is 9 hours ahead of GMT. To convert GMT to Osaka Time, add 9 hours to the GMT time: 9:00 AM GMT = 6:00 PM JST.
GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year. Osaka Time (Osaka time) is used in Osaka, Japan.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
GMT to Osaka Time time conversion table
GMT to Osaka Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GMT | Osaka Time | Day |
|---|---|---|
| 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 | night |
| 2:00 PM GMT | 11:00 PM JST | night |
| 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 |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert GMT to Osaka Time
Add 9 hours to the GMT time to get Osaka Time.
Example: 9:00 AM GMT = 6:00 PM JST.
Across midnight: 10:00 PM GMT = 7:00 AM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between GMT and Osaka Time
The time difference between GMT and Osaka Time is 9 hours all year – JST is ahead of GMT.
GMT and Osaka Time during daylight saving time
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
- Osaka Time does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between GMT and Osaka Time
GMT and Osaka Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 4:00 PM JST.
GMT to Osaka Time FAQ
What is the time difference between GMT and Osaka Time?
JST is 9 hours ahead of GMT all year. 9:00 AM GMT = 6:00 PM JST.
What is 9 AM GMT in Osaka Time?
9:00 AM GMT is 6:00 PM JST.
What is 12 PM (noon) GMT in Osaka Time?
12:00 PM GMT is 9:00 PM JST.
Is Osaka Time ahead of or behind GMT?
JST is 9 hours ahead of GMT, so it is later in Osaka Time than in GMT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
Does Osaka Time change for daylight saving time?
No. Osaka Time stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between GMT and Osaka Time?
GMT and Osaka Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 4:00 PM JST.
Related conversions
Convert Osaka Time to GMT
Convert GMT to other time zones
Convert other time zones to Osaka Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.