London to Japan — exact time difference
London is 8 hours behind Japan. Midday in London lines up with 20:00 in Japan.
London observes Europe/London and Japan observes Asia/Tokyo — a 8 hours gap between them.
Working hours overlap
When London is in standard working hours, Japan is not — and vice versa. There is no mutual business window between these two locations.
Optimal meeting slots
No business hours overlap exists between London and Japan. Showing the most balanced options with minimal inconvenience for both locations.
08:00 London / 16:00 Tokyo⚡ One side off-hours
⚠️ 1h before working hours in London
09:00 London / 17:00 Tokyo⚡ One side off-hours
⚠️ 1h after working hours in Tokyo
07:00 London / 15:00 Tokyo⚡ One side off-hours
⚠️ 2h before working hours in London
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
London4 holidays
Aug 31Summer Bank HolidaySOON
Nov 30Saint Andrew's Day
Dec 25Christmas Day
Dec 28St. Stephen's Day
Japan5 holidays
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
Nov 3Culture Day
Nov 23Labour Thanksgiving Day
How to work with London and Japan time zones
Working across London (United Kingdom) and Japan (Japan) is a challenge — the 8-hour difference means no shared business hours window under a standard schedule. Flexibility from at least one side is required.
💡 How to schedule across these time zones
⚡08:00–09:00 in London corresponds to 16:00–17:00 in Japan (1h before working hours in London).
⚡09:00–10:00 in London corresponds to 17:00–18:00 in Japan (1h after working hours in Tokyo).
⚡07:00–08:00 in London corresponds to 15:00–16:00 in Japan (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.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Install ClockinSync Free →Drag the slider at the top to convert any London time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
