What is BST?
BST stands for British Summer Time. Its offset from UTC is UTC+1, 1 hour ahead of UTC.
BST is the United Kingdom's daylight saving time. Clocks go forward one hour from GMT.
BST is also used as an abbreviation for Bangladesh Standard Time (UTC+6), which is a different time. This page is about British Summer Time, UTC+1.
Where BST is used
United Kingdom in summer. The table shows examples, not every place. Entries in bold are on BST at that moment.
| Place | Mid-January 2026 | Mid-July 2026 | Now |
|---|---|---|---|
| London | GMT (UTC+0) | BST (UTC+1) | GMT (UTC+0) |
See GMT, the matching winter time.
Time difference between BST and other cities
| City | Compared with BST, now | Changes in the next 12 months |
|---|---|---|
| New York City | 6 hours behind | Sun 14 Mar 2027, 07:00 UTC: 5 hours behind |
| Los Angeles | 9 hours behind | Sun 14 Mar 2027, 10:00 UTC: 8 hours behind |
| London | 1 hour behind | Sun 28 Mar 2027, 01:00 UTC: Same time Sun 31 Oct 2027, 01:00 UTC: 1 hour behind |
| Dubai | 3 hours ahead | No change |
| Mumbai | 4 hours 30 minutes ahead | No change |
| Singapore | 7 hours ahead | No change |
| Tokyo | 8 hours ahead | No change |
| Sydney | 10 hours ahead | Sat 3 Apr 2027, 16:00 UTC: 9 hours ahead Sat 2 Oct 2027, 16:00 UTC: 10 hours ahead |
A gap changes when the two places change their clocks on different dates. Dates are in UTC.
Working hours that overlap with BST
When it is 09:00 to 17:00 in BST, where is it also a working day (09:00 to 17:00)? This uses today’s clock settings, so check the meeting planner for weeks when clocks change.
| City | Shared working hours |
|---|---|
| New York City | 15:00 to 17:00 in BST (09:00 to 11:00 in New York City) |
| Los Angeles | No shared working hours |
| London | 10:00 to 17:00 in BST (09:00 to 16:00 in London) |
| Dubai | 09:00 to 14:00 in BST (12:00 to 17:00 in Dubai) |
| Mumbai | 09:00 to 12:30 in BST (13:30 to 17:00 in Mumbai) |
| Singapore | 09:00 to 10:00 in BST (16:00 to 17:00 in Singapore) |
| Tokyo | No shared working hours |
| Sydney | No shared working hours |