TIME ZONE CONVERTER
London to Honolulu
Time Converter
Convert London, United Kingdom to Honolulu, United States. Compare dates, seasonal differences and meeting hours.
London is 10h or 11h ahead of Honolulu in 2026, depending on the date.
9 AM London = 11 PM Honolulu Sun, 8 Nov at the destination
Selected date: November 9, 2026.
THE QUICK REFERENCE
CSVLondon to Honolulu conversion table
November 9, 2026 · Date changes are marked.
View the full 24-hour table
| London | Honolulu |
|---|---|
| 12:00 AM | 2:00 PM -1 day |
| 1:00 AM | 3:00 PM -1 day |
| 2:00 AM | 4:00 PM -1 day |
| 3:00 AM | 5:00 PM -1 day |
| 4:00 AM | 6:00 PM -1 day |
| 5:00 AM | 7:00 PM -1 day |
| 6:00 AM | 8:00 PM -1 day |
| 7:00 AM | 9:00 PM -1 day |
| 8:00 AM | 10:00 PM -1 day |
| 9:00 AM | 11:00 PM -1 day |
| 10:00 AM | 12:00 AM |
| 11:00 AM | 1:00 AM |
| London | Honolulu |
|---|---|
| 12:00 PM | 2:00 AM |
| 1:00 PM | 3:00 AM |
| 2:00 PM | 4:00 AM |
| 3:00 PM | 5:00 AM |
| 4:00 PM | 6:00 AM |
| 5:00 PM | 7:00 AM |
| 6:00 PM | 8:00 AM |
| 7:00 PM | 9:00 AM |
| 8:00 PM | 10:00 AM |
| 9:00 PM | 11:00 AM |
| 10:00 PM | 12:00 PM |
| 11:00 PM | 1:00 PM |
Starting with the Honolulu working day
These examples start on 2026-11-09 in Honolulu.
09:00 Honolulu19:00 →London · 2026-11-09
17:00 Honolulu03:00 →London · 2026-11-10
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 London to Honolulu throughout 2026
Keeping 09:00 on the London clock produces 2 different destination clock/date answers in 2026. The ranges below use London calendar dates, including transition days.
| Dates in London · 2026 | Honolulu answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Mar 2887 dates | 23:00Previous day | UTC → UTC−10:00 | |
| Mar 29 – Oct 24210 dates | 22:00Previous day | UTC+01:00 → UTC−10:00 | |
| Oct 25 – Dec 3168 dates | 23:00Previous day | UTC → UTC−10:00 |
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 London time become a different date in Honolulu?
Your complete source day: 2026-11-09. Each range shows which destination date to use.
London · 2026-11-0900:00–10:00UTC
Honolulu · 2026-11-0814:00–24:00UTC−10:00 Previous day
London · 2026-11-0910:00–24:00UTC
Honolulu · 2026-11-0900:00–14:00UTC−10:00 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
2026A year of time differences.
How Honolulu compares with London throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
−10h
−11h
−10h
London changes its UTC offset in 2026. Honolulu keeps one UTC offset this year.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | Honolulu vs London |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 10h behind |
| 29 Mar 2026, 01:00 UTC | 25 Oct 2026, 01:00 UTC | 11h behind |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 10h behind |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has Honolulu 11h behind relative to London. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with London |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 10h behind |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 10h behind |
PLAN BEYOND A SINGLE DAY
Daily CSVLondon–Honolulu working hours through 2026
Every date calculated with your working windows. 261 selected London 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.
London: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Honolulu: 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.
≈ 11,632 km apartAcross the map. Across the clock.
THE DETAILS THAT MATTER
London to Honolulu: useful answers
Why is the London to Honolulu difference sometimes 10 hours and sometimes 11 hours?
London is 10h or 11h ahead of Honolulu in 2026, depending on the date. London changes its UTC offset in 2026. Honolulu keeps one UTC offset this year.
Does the London–Honolulu 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 London on 2026-11-09 is 23:00 in Honolulu on 2026-11-08. Use the destination date when adding the meeting to a calendar.
Can London and Honolulu meet during working hours?
Your selected working windows have no shared time on 2026-11-09. 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