No overlap — one side will join outside working hours
TOKYO (Tokyo)
GMT (London)
00:00
16:00-1dWorking
01:00
17:00-1d
02:00
18:00-1d
03:00
19:00-1d
04:00
20:00-1d
05:00
21:00-1d
06:00
22:00-1d
07:00
23:00-1d
08:00
00:00
09:00Working
01:00off
10:00Working
02:00off
11:00Working
03:00off
12:00Working
04:00off
13:00Working
05:00off
14:00Working
06:00off
15:00Working
07:00off
16:00Working
08:00off
17:00
09:00Working
18:00
10:00Working
19:00
11:00Working
20:00
12:00Working
21:00
13:00Working
22:00
14:00Working
23:00
15:00Working
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between tokyo and gmt?
TOKYO (Tokyo) (tokyo) is UTC+9 and Greenwich Mean Time (gmt) is UTC+1. The difference between them is 8 hours.
Where is tokyo used?
TOKYO (Tokyo) (tokyo) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.
Where is gmt used?
Greenwich Mean Time (gmt) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London.
How do I convert tokyo to gmt?
Use the interactive converter above. Drag the time slider to any tokyo time and the gmt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
Tokyo is 8 hours ahead of GMT (London). Midday in Tokyo lines up with 04:00 in GMT (London).
Tokyo runs on Asia/Tokyo; GMT (London) runs on Europe/London. Together they are 8 hours apart.
Business hours comparison
There is no business hours overlap between Tokyo and GMT (London) during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best times to schedule a meeting
Tokyo and GMT (London) 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.
Tokyo7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
GMT (London)6 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 Tokyo and GMT (London) time zones
Teams in Tokyo (Japan) and GMT (London) (United Kingdom) deal with a 8-hour gap that pushes their working days apart. Real-time meetings always require someone to stretch outside the standard 9–5.
💡 How to schedule across these time zones
⚡
A 16:00 meeting in Tokyo means 08:00 in GMT (London) (1h before working hours in London).
⚡
A 17:00 meeting in Tokyo means 09:00 in GMT (London) (1h after working hours in Tokyo).
⚡
A 15:00 meeting in Tokyo means 07:00 in GMT (London) (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 Tokyo".
