Japan is 8 hours ahead of United Kingdom. Midday in Japan lines up with 04:00 in United Kingdom.
Japan runs on Asia/Tokyo; United Kingdom runs on Europe/London. Together they are 8 hours apart.
Shared working hours
There is no business hours overlap between Japan and United Kingdom during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best times to schedule a meeting
Japan and United Kingdom have no shared working window. These slots minimize out-of-hours disruption for both sides.
16:00 Tokyo / 08:00 London⚡ One side off-hours
⚠️ 1h before working hours in London
17:00 Tokyo / 09:00 London⚡ One side off-hours
⚠️ 1h after working hours in Tokyo
15:00 Tokyo / 07:00 London⚡ One side off-hours
⚠️ 2h before working hours in London
Working hours defined as 09:00–17:00 local time for each location.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
Japan7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
United Kingdom6 holidays
Jul 13Battle of the Boyne
Aug 3Summer Bank Holiday
Aug 31Summer Bank Holiday
Nov 30Saint Andrew's Day
Dec 25Christmas Day
How to work with Japan and United Kingdom time zones
A 8-hour difference separates Japan (Japan) and United Kingdom (United Kingdom) — wide enough that standard business hours don't align at all. Scheduling requires deliberate compromise from both sides.
💡 How to schedule across these time zones
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A 16:00 meeting in Japan means 08:00 in United Kingdom (1h before working hours in London).
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A 17:00 meeting in Japan means 09:00 in United Kingdom (1h after working hours in Tokyo).
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A 15:00 meeting in Japan means 07:00 in United Kingdom (2h before working hours in London).
Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am Japan".
