London to Tokyo time converter
Tokyo is usually 8 hours ahead of London, but the gap changes around daylight saving dates. Pick a date and time below, or use the tables to plan a call.
Tokyo is 8 hours ahead of London.
Live from your device clock using your browser’s time zone data.
- 9:00 AM in London is5:00 PM in Tokyo
- A 9 am – 5 pm working day in London is5:00 PM – 1:00 AM in Tokyo
- No shared 9–5 hours. Least disruptive one-hour call7:00 AM–1:00 PM in London (3:00 PM–9:00 PM in Tokyo)
Reference date at build time. Tables below cover the whole year.
Convert a specific time
9:00 AM London on Thu, Oct 22 is 5:00 PM Tokyo on Thu, Oct 22.
Tip: link straight to an answer with ?t=3pm or ?t=15:30&d=2026-10-22. Select any time in the hour-by-hour table below to fill this in.
Time difference through 2026
3 periods with a constant difference. The unusual periods last 87 days and 68 days: check meetings in those weeks.
| Dates in London | Tokyo vs London | 9:00 AM in London is | Best one-hour call, London time |
|---|---|---|---|
| Jan 1 – Mar 29 87 days | 9 hours ahead UTC+0 → UTC+9 | 6:00 PM | 7:00 AM–8:00 AM, 9:00 AM–12:00 PM Outside 9–5 for someone |
| Mar 29 – Oct 25 210 days | 8 hours ahead UTC+1 → UTC+9 | 5:00 PM | 7:00 AM–1:00 PM Outside 9–5 for someone |
| Oct 25 – Dec 31 68 days | 9 hours ahead UTC+0 → UTC+9 | 6:00 PM | 7:00 AM–8:00 AM, 9:00 AM–12:00 PM Outside 9–5 for someone |
Periods are split at every clock change in either place, calculated from the IANA time zone database at build time. The 9:00 AM and call examples use the middle date of each period. Future rules can change.
Hour-by-hour: London to Tokyo
Every hour of the chosen day in London, with working hours marked on both sides.
Showing 2026-10-22. Repeated hours after a clock change list both occurrences.
| London | Tokyo | Date in Tokyo |
|---|---|---|
| 8:00 AM | Thu, Oct 22 | |
| 9:00 AM | Thu, Oct 22 | |
| 10:00 AM | Thu, Oct 22 | |
| 11:00 AM | Thu, Oct 22 | |
| 12:00 PM | Thu, Oct 22 | |
| 1:00 PM | Thu, Oct 22 | |
| 2:00 PM | Thu, Oct 22 | |
| 3:00 PM | Thu, Oct 22 | |
| 4:00 PM | Thu, Oct 22 | |
| 5:00 PM | Thu, Oct 22 | |
| 6:00 PM | Thu, Oct 22 | |
| 7:00 PM | Thu, Oct 22 | |
| 8:00 PM | Thu, Oct 22 | |
| 9:00 PM | Thu, Oct 22 | |
| 10:00 PM | Thu, Oct 22 | |
| 11:00 PM | Thu, Oct 22 | |
| 12:00 AM | Fri, Oct 23next day | |
| 1:00 AM | Fri, Oct 23next day | |
| 2:00 AM | Fri, Oct 23next day | |
| 3:00 AM | Fri, Oct 23next day | |
| 4:00 AM | Fri, Oct 23next day | |
| 5:00 AM | Fri, Oct 23next day | |
| 6:00 AM | Fri, Oct 23next day | |
| 7:00 AM | Fri, Oct 23next day |
9 am – 5 pm7–9 am, 5–9 pmNightShaded rows: working hours in both places
Public holidays in the next 60 days
National holidays in the United Kingdom and Japan. A call that works on the clock may still land on a day off. The planner above skips these dates when “Skip public holidays” is on.
- Tue, Nov 3 · Culture Day (Japan)
- Mon, Nov 23 · Labor Thanksgiving Day (Japan)
Questions about London and Tokyo time
What is the time difference between London and Tokyo?
It depends on the date. For most of 2026, Tokyo is 8 hours ahead of London. From Jan 1 – Mar 29, it is 9 hours ahead of London. From Oct 25 – Dec 31, it is 9 hours ahead of London.
The difference changes because London changes its clocks while the other does not.
What time is it in Tokyo when it is noon in London?
When Tokyo is 9 hours ahead of London: 12:00 PM in London is 9:00 PM in Tokyo.
When Tokyo is 8 hours ahead of London: 12:00 PM in London is 8:00 PM in Tokyo.
When is the best time to call Tokyo from London?
There are no shared 9 am – 5 pm hours. The least disruptive one-hour slot is 7:00 AM–1:00 PM in London (3:00 PM–9:00 PM in Tokyo), which puts one side in the early morning or evening.
Switch the converter above to Meeting planner to set your own working hours and meeting length, or exclude weekends.
Do London and Tokyo use daylight saving time?
London changes its clocks 2 times in 2026: forward on Sunday, March 29, 2026 (UTC+0 → UTC+1); back on Sunday, October 25, 2026 (UTC+1 → UTC+0).
Tokyo keeps UTC+9 all year, with no clock changes in 2026.
Which time zone identifiers should I use in a calendar?
London: Europe/London. Tokyo: Asia/Tokyo. City identifiers carry the daylight saving rules, so a recurring event keeps its local time.