UK Time to JST Converter
JST is 9 hours ahead of GMT. 9:00 AM GMT = 6:00 PM JST.
JST is 9 hours ahead of GMT at the moment. To convert UK Time to JST, add 9 hours to the UK Time time: 9:00 AM GMT = 6:00 PM JST.
UK Time (UK time) is used in United Kingdom. JST (Japan Time) is used in Japan.
UK Time to JST time conversion table
UK Time to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| UK Time | JST | 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 UK Time to JST
Add 9 hours to the UK Time time to get JST.
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 UK Time and JST
The time difference between UK Time and JST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 28 Mar 2026: JST is 9 hours ahead of UK Time.
- 29 Mar 2026 – 24 Oct 2026: JST is 8 hours ahead of UK Time.
- 25 Oct 2026 – 31 Dec 2026: JST is 9 hours ahead of UK Time.
UK Time and JST during daylight saving time
- UK Time next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between UK Time and JST
UK Time and JST 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.
UK Time to JST FAQ
What is the time difference between UK Time and JST?
Right now JST is 9 hours ahead of GMT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM UK Time in JST?
9:00 AM GMT is 6:00 PM JST.
What is 12 PM (noon) UK Time in JST?
12:00 PM GMT is 9:00 PM JST.
Is JST ahead of or behind UK Time?
JST is 9 hours ahead of GMT, so it is later in JST than in UK Time.
Does UK Time change for daylight saving time?
Yes. UK Time next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between UK Time and JST?
UK Time and JST 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 JST to UK Time
Convert UK Time to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.