British Summer Time
BST means UTC+01:00 throughout the year. London follows regional clock rules and uses UTC on your selected date.
Use London for local civil time →Other meanings: Bangladesh Standard Time.
TIME ZONE CONVERTER
Tokyo to BST
Time Converter
Convert Tokyo, Japan to British Summer Time. Compare dates, seasonal differences and meeting hours.
Tokyo is 8h ahead of BST in 2026.
9 AM Tokyo = 1 AM BST
Selected date: November 4, 2026. Fixed abbreviations retain their stated UTC offsets.
THE QUICK REFERENCE
CSVTokyo to BST conversion table
November 4, 2026 · Date changes are marked.
View the full 24-hour table
| Tokyo | BST |
|---|---|
| 12:00 AM | 4:00 PM -1 day |
| 1:00 AM | 5:00 PM -1 day |
| 2:00 AM | 6:00 PM -1 day |
| 3:00 AM | 7:00 PM -1 day |
| 4:00 AM | 8:00 PM -1 day |
| 5:00 AM | 9:00 PM -1 day |
| 6:00 AM | 10:00 PM -1 day |
| 7:00 AM | 11:00 PM -1 day |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| Tokyo | BST |
|---|---|
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 PM |
Starting with the BST working day
These examples start on 2026-11-04 in BST.
09:00 BST17:00 →Tokyo · 2026-11-04
17:00 BST01:00 →Tokyo · 2026-11-05
Which time-zone meaning are we using?
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 Tokyo to BST throughout 2026
09:00 in Tokyo converts to 01:00 in BST on every date in 2026. The destination has the same calendar date.
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
DON’T LOSE A DAY
When does Tokyo time become a different date in BST?
Your complete source day: 2026-11-04. Each range shows which destination date to use.
Tokyo · 2026-11-0400:00–08:00UTC+09:00
BST · 2026-11-0316:00–24:00UTC+01:00 Previous day
Tokyo · 2026-11-0408:00–24:00UTC+09:00
BST · 2026-11-0400:00–16:00UTC+01:00 Same date
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
THE BIGGER PICTURE
2026Some things stay in sync.
The difference between Tokyo and BST stays the same throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
−8h
Neither selected clock changes its UTC offset during 2026.
CLOCK CHANGES
No upcoming clock adjustment
No clock change is published for either selected time zone in the next 400 days within our supported range.
PLAN BEYOND A SINGLE DAY
Daily CSVTokyo–BST working hours through 2026
Every date calculated with your working windows. 261 selected Tokyo workdays; public holidays are not applied.
Least shared time0h
Most common0h
Most shared time0h
Days without a 60-min slot261 / 261
One fixed start time does not fit every working day.
Your working windows never overlap on the selected host workdays this year. Adjust working days, hours or duration above, or use different seasonal meeting times.
Tokyo: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. BST: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Calculation details and repeated hours
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
THE DETAILS THAT MATTER
Tokyo to BST: useful answers
Is BST the same as local city time?
BST is fixed at UTC+01:00. Tokyo to London uses regional rules instead. On 2026-11-04, 09:00 at the source becomes 00:00 at the destination (GMT). Choose the local-city option above when that is the clock you mean.
Which cities match BST throughout 2026?
Lagos, Nigeria; Kinshasa, Congo - Kinshasa; Luanda, Angola; Abuja, Nigeria keep the same UTC+01:00 offset as fixed BST throughout 2026 under the published rules. Matching an offset does not mean every place uses the abbreviation BST.
Does the Tokyo–BST time difference change in 2026?
The difference stays constant throughout 2026: BST is 8h behind compared with Tokyo.
Does this conversion change the calendar date?
09:00 in Tokyo on 2026-11-04 is 01:00 in BST on 2026-11-04. This selected time stays on the same date in both places. Other times can cross midnight.
Can Tokyo and BST meet during working hours?
Your selected working windows have no shared time on 2026-11-04. The planner shows alternatives and how many minutes fall outside each person's working hours. Try another date or adjust the windows.
Related time-zone meanings and conversions
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology