London to Tokyo — Time Zone Converter
GMT/BST (UTC+1) → JST (UTC+9). Tokyo is 8 hours ahead relative to London right now.
London
Oct 7, 2026, 12:55 PM
Tokyo
Oct 7, 2026, 8:55 PM
Need the reverse? Tokyo to London →
Sample times — GMT/BST to JST
Sample conversions for today; daylight saving applied.
About London and TokyoLondon vs Tokyo time difference through 2026
The gap changes twice during 2026, because only London observes daylight saving time. Double-check meetings booked in the weeks around each switch.
Dates (2026) GMT/BST JST Difference Jan 1 – Mar 28 UTC UTC+9 Tokyo is 9 hours ahead Mar 29 – Oct 24 UTC+1 UTC+9 Tokyo is 8 hours ahead Oct 25 – Dec 31 UTC UTC+9 Tokyo is 9 hours ahead
Transition dates are the first full day on the new offset; clocks usually change overnight, between 1:00 and 3:00 local time.
Method & sources
Offsets and daylight-saving dates are computed from the IANA Time Zone Database through the JavaScript Intl API — the same rules your phone and computer use. The year table above was generated from those rules when this page was built; the live converter uses the rules installed in your own browser, so it stays correct if a country changes its clocks.
Page last updated: October 1, 2026
London vs Tokyo time difference through 2026
The gap changes twice during 2026, because only London observes daylight saving time. Double-check meetings booked in the weeks around each switch.
| Dates (2026) | GMT/BST | JST | Difference |
|---|---|---|---|
| Jan 1 – Mar 28 | UTC | UTC+9 | Tokyo is 9 hours ahead |
| Mar 29 – Oct 24 | UTC+1 | UTC+9 | Tokyo is 8 hours ahead |
| Oct 25 – Dec 31 | UTC | UTC+9 | Tokyo is 9 hours ahead |
Transition dates are the first full day on the new offset; clocks usually change overnight, between 1:00 and 3:00 local time.
Method & sources
Offsets and daylight-saving dates are computed from the IANA Time Zone Database through the JavaScript Intl API — the same rules your phone and computer use. The year table above was generated from those rules when this page was built; the live converter uses the rules installed in your own browser, so it stays correct if a country changes its clocks.
Page last updated: October 1, 2026
London to Tokyo is nine hours in winter and eight in summer. With almost no shared working day, teams rely on a London morning against a Tokyo evening, or asynchronous handoffs between the two.
Frequently asked questions
What is the time difference between London and Tokyo?
Right now the offset is about 8 hours ahead (from GMT/BST to JST). Daylight saving rules differ by region, so use the converter and table above rather than memorising a single number year-round.
Does daylight saving affect London vs Tokyo?
Yes, whenever either region springs forward or falls back, the gap can shift by an hour. This page uses the IANA time-zone database so those transitions are applied automatically.
How do I schedule a meeting across the United Kingdom and Japan?
Pick a time in the converter, share both columns with attendees, and avoid early-morning or late-night slots on one side. The sample table lists common business hours in the source zone.
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