Convert London to JST
Convert a time in London to JST, with daylight-saving changes applied for the date you choose.
London to JST
Time in London, United Kingdom
Time in JST, Asia
- London now
- —
- JST now
- —
Time zone details
London, United Kingdom
- IANA zone
- Europe/London
- Standard offset
- UTC+00:00
- Daylight offset
- UTC+01:00
- Daylight saving
- Observed
Clocks change in 2026 on 29 March 2026 and 25 October 2026.
Daylight at the solstices
- 21 June
- 04:44 – 21:22 (16h 38m)
- 21 December
- 08:05 – 15:54 (7h 50m)
JST, Asia
- IANA zone
- Etc/GMT-9
- Standard offset
- UTC+09:00
- Daylight saving
- Not observed
Sunrise and sunset are calculated for the city centre and are accurate to about a minute. Local elevation and atmospheric conditions shift the observed horizon.
Need the reverse direction? Convert JST to London.
Related time zones conversions
Frequently asked questions
What is the time difference between London and JST?+
London is UTC+00:00 and JST is UTC+09:00 in standard time. The gap between them changes during the year if either place observes daylight saving, so enter a date to see the difference on that day.
Does London observe daylight saving time?+
Yes. In 2026 the clocks change on 29 March 2026 and 25 October 2026.
Does JST observe daylight saving time?+
No. JST stays on UTC+09:00 all year.
Why does one local time sometimes have two answers?+
When clocks go back, the hour before the change repeats, so that local reading happens twice and both instants are valid. When clocks go forward, the skipped hour never occurs, so that reading has no matching instant at all. The converter reports both cases rather than guessing.