TIME ZONE CONVERTER
Sendai to London
Time Converter
Convert Sendai, Japan to London, United Kingdom. Compare dates, seasonal differences and meeting hours.
Sendai is 8h or 9h ahead of London in 2026, depending on the date.
9 AM Sendai = 12 AM London
Selected date: November 11, 2026.
THE QUICK REFERENCE
CSVSendai to London conversion table
November 11, 2026 · Date changes are marked.
View the full 24-hour table
| Sendai | London |
|---|---|
| 12:00 AM | 3:00 PM -1 day |
| 1:00 AM | 4:00 PM -1 day |
| 2:00 AM | 5:00 PM -1 day |
| 3:00 AM | 6:00 PM -1 day |
| 4:00 AM | 7:00 PM -1 day |
| 5:00 AM | 8:00 PM -1 day |
| 6:00 AM | 9:00 PM -1 day |
| 7:00 AM | 10:00 PM -1 day |
| 8:00 AM | 11:00 PM -1 day |
| 9:00 AM | 12:00 AM |
| 10:00 AM | 1:00 AM |
| 11:00 AM | 2:00 AM |
| Sendai | London |
|---|---|
| 12:00 PM | 3:00 AM |
| 1:00 PM | 4:00 AM |
| 2:00 PM | 5:00 AM |
| 3:00 PM | 6:00 AM |
| 4:00 PM | 7:00 AM |
| 5:00 PM | 8:00 AM |
| 6:00 PM | 9:00 AM |
| 7:00 PM | 10:00 AM |
| 8:00 PM | 11:00 AM |
| 9:00 PM | 12:00 PM |
| 10:00 PM | 1:00 PM |
| 11:00 PM | 2:00 PM |
Starting with the London working day
These examples start on 2026-11-11 in London.
09:00 London18:00 →Sendai · 2026-11-11
17:00 London02:00 →Sendai · 2026-11-12
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 Sendai to London throughout 2026
Keeping 09:00 on the Sendai clock produces 2 different destination clock/date answers in 2026. The ranges below use Sendai calendar dates, including transition days.
| Dates in Sendai · 2026 | London answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Mar 2988 dates | 00:00Same date | UTC+09:00 → UTC | |
| Mar 30 – Oct 25210 dates | 01:00Same date | UTC+09:00 → UTC+01:00 | |
| Oct 26 – Dec 3167 dates | 00:00Same date | UTC+09:00 → UTC |
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 Sendai time become a different date in London?
Your complete source day: 2026-11-11. Each range shows which destination date to use.
Sendai · 2026-11-1100:00–09:00UTC+09:00
London · 2026-11-1015:00–24:00UTC Previous day
Sendai · 2026-11-1109:00–24:00UTC+09:00
London · 2026-11-1100:00–15:00UTC 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
2026A year of time differences.
How London compares with Sendai throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
−9h
−8h
−9h
London changes its UTC offset in 2026. Sendai keeps one UTC offset this year.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | London vs Sendai |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 9h behind |
| 29 Mar 2026, 01:00 UTC | 25 Oct 2026, 01:00 UTC | 8h behind |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 9h behind |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has London 8h behind relative to Sendai. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with Sendai |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 9h behind |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 9h behind |
PLAN BEYOND A SINGLE DAY
Daily CSVSendai–London working hours through 2026
Every date calculated with your working windows. 261 selected Sendai 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.
Sendai: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. London: 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.
TWO PLACES. ONE CONNECTION.
≈ 9,337 km apartAcross the map. Across the clock.
THE DETAILS THAT MATTER
Sendai to London: useful answers
Why is the Sendai to London difference sometimes 8 hours and sometimes 9 hours?
Sendai is 8h or 9h ahead of London in 2026, depending on the date. London changes its UTC offset in 2026. Sendai keeps one UTC offset this year.
Does the Sendai–London time difference change in 2026?
The published rules produce 3 periods with 2 different offsets in 2026. See the annual chart for the exact boundaries of each period.
Does this conversion change the calendar date?
09:00 in Sendai on 2026-11-11 is 00:00 in London on 2026-11-11. This selected time stays on the same date in both places. Other times can cross midnight.
Can Sendai and London meet during working hours?
Your selected working windows have no shared time on 2026-11-11. 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
Choose the question you need answered
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology