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
BST to Los Angeles
Time Converter
Convert British Summer Time to Los Angeles, United States. Compare dates, seasonal differences and meeting hours.
BST is 8h or 9h ahead of Los Angeles in 2026, depending on the date.
9 AM BST = 12 AM Los Angeles
Selected date: November 4, 2026. Fixed abbreviations retain their stated UTC offsets.
THE QUICK REFERENCE
CSVBST to Los Angeles conversion table
November 4, 2026 · Date changes are marked.
View the full 24-hour table
| BST | Los Angeles |
|---|---|
| 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 |
| BST | Los Angeles |
|---|---|
| 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 Los Angeles working day
These examples start on 2026-11-04 in Los Angeles.
09:00 Los Angeles18:00 →BST · 2026-11-04
17:00 Los Angeles02:00 →BST · 2026-11-05
Which time-zone meaning are we using?
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 BST to Los Angeles throughout 2026
Keeping 09:00 on the BST clock produces 2 different destination clock/date answers in 2026. The ranges below use BST calendar dates, including transition days.
| Dates in BST · 2026 | Los Angeles answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Mar 867 dates | 00:00Same date | UTC+01:00 → UTC−08:00 | |
| Mar 9 – Nov 1238 dates | 01:00Same date | UTC+01:00 → UTC−07:00 | |
| Nov 2 – Dec 3160 dates | 00:00Same date | UTC+01:00 → UTC−08:00 |
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 BST time become a different date in Los Angeles?
Your complete source day: 2026-11-04. Each range shows which destination date to use.
BST · 2026-11-0400:00–09:00UTC+01:00
Los Angeles · 2026-11-0315:00–24:00UTC−08:00 Previous day
BST · 2026-11-0409:00–24:00UTC+01:00
Los Angeles · 2026-11-0400:00–15:00UTC−08:00 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 Los Angeles compares with BST throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
−9h
−8h
−9h
Los Angeles changes its UTC offset in 2026. BST is a fixed offset.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | Los Angeles vs BST |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 8 Mar 2026, 10:00 UTC | 9h behind |
| 8 Mar 2026, 10:00 UTC | 1 Nov 2026, 09:00 UTC | 8h behind |
| 1 Nov 2026, 09:00 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 Los Angeles 8h behind relative to BST. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with BST |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 8 Mar 2026, 10:00 UTC | 9h behind |
| 1 Nov 2026, 09:00 UTC | 1 Jan 2027, 00:00 UTC | 9h behind |
PLAN BEYOND A SINGLE DAY
Daily CSVBST–Los Angeles working hours through 2026
Every date calculated with your working windows. 261 selected BST 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.
BST: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Los Angeles: 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
BST to Los Angeles: useful answers
Why is the BST to Los Angeles difference sometimes 8 hours and sometimes 9 hours?
BST is 8h or 9h ahead of Los Angeles in 2026, depending on the date. Los Angeles changes its UTC offset in 2026. BST is a fixed offset.
Is BST the same as local city time?
BST is fixed at UTC+01:00. London to Los Angeles uses regional rules instead. On 2026-11-04, 09:00 at the source becomes 01:00 at the destination (PST). 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 BST–Los Angeles 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 BST on 2026-11-04 is 00:00 in Los Angeles on 2026-11-04. This selected time stays on the same date in both places. Other times can cross midnight.
Can BST and Los Angeles 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