No overlap — one side will join outside working hours
JST (Tokyo)
LONDON (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 jst and london?
Japan Standard Time (jst) is UTC+9 and LONDON (London) (london) is UTC+1. The difference between them is 8 hours.
Where is jst used?
Japan Standard Time (jst) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.
Where is london used?
LONDON (London) (london) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London.
How do I convert jst to london?
Use the interactive converter above. Drag the time slider to any jst time and the london equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
JST (Tokyo) is 8 hours ahead of London. When it's noon in JST (Tokyo), it's 04:00 in London.
JST (Tokyo) observes Asia/Tokyo and London observes Europe/London — a 8 hours gap between them.
Working hours overlap
When JST (Tokyo) is in standard working hours, London is not — and vice versa. There is no mutual business window between these two locations.
Meeting time recommendations
No business hours overlap exists between JST (Tokyo) and London. Showing the most balanced options with minimal inconvenience for both locations.
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
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Public holidays this year
⚡ Upcoming holidays in both locations, confirm with your contact before booking.
JST (Tokyo)7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
London6 holidays
Jul 13Battle of the Boyne
Aug 3Summer Bank Holiday
Aug 31Summer Bank Holiday
Nov 30Saint Andrew's Day
Dec 25Christmas Day
JST (Tokyo) and London — practical scheduling
Working across JST (Tokyo) (Japan) and London (United Kingdom) 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.
💡 Practical scheduling guidelines
⚡
16:00–17:00 in JST (Tokyo) corresponds to 08:00–09:00 in London (1h before working hours in London).
⚡
17:00–18:00 in JST (Tokyo) corresponds to 09:00–10:00 in London (1h after working hours in Tokyo).
⚡
15:00–16:00 in JST (Tokyo) corresponds to 07:00–08:00 in London (2h before working hours in London).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any JST (Tokyo) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
