What is BST in UTC?
Coordinated Universal Time is 1 hour behind
British Time is on UTC+1:00 and Coordinated Universal Time is on UTC+0:00 right now. British Time is on daylight saving, so its clocks read BST. The gap changes during the year — see below.
- Time in London
- 3:14 am
- Time in the prime meridian
- 2:14 am
- Difference
- −1 h
- Next clock change
- October 25, 2026
Convert a time
UTC — Coordinated Universal Time
2:00 am
Wed
When the difference changes
British Time and Coordinated Universal Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – October 25, 2026Coordinated Universal Time is 1 hour behind
- October 25, 2026 – March 28, 2027Coordinated Universal Time is the same time
- March 28, 2027 – onwardsCoordinated Universal Time is 1 hour behind
Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.
Daylight saving
British Time
Clocks go back one hour at 2am local time, becoming GMT.
Coordinated Universal Time
Coordinated Universal Time stays on UTC all year, so its offset from UTC never moves.
BST to UTC conversion table
Every hour of Wednesday, September 23, 2026, converted from British Time to Coordinated Universal Time. 1 of the 24 hours fall on a different calendar day in the prime meridian, which is marked.
- 12:00 am BST
- 11:00 pm UTC−1 day
- 1:00 am BST
- 12:00 am UTC
- 2:00 am BST
- 1:00 am UTC
- 3:00 am BST
- 2:00 am UTC
- 4:00 am BST
- 3:00 am UTC
- 5:00 am BST
- 4:00 am UTC
- 6:00 am BST
- 5:00 am UTC
- 7:00 am BST
- 6:00 am UTC
- 8:00 am BST
- 7:00 am UTC
- 9:00 am BST
- 8:00 am UTC
- 10:00 am BST
- 9:00 am UTC
- 11:00 am BST
- 10:00 am UTC
- 12:00 pm BST
- 11:00 am UTC
- 1:00 pm BST
- 12:00 pm UTC
- 2:00 pm BST
- 1:00 pm UTC
- 3:00 pm BST
- 2:00 pm UTC
- 4:00 pm BST
- 3:00 pm UTC
- 5:00 pm BST
- 4:00 pm UTC
- 6:00 pm BST
- 5:00 pm UTC
- 7:00 pm BST
- 6:00 pm UTC
- 8:00 pm BST
- 7:00 pm UTC
- 9:00 pm BST
- 8:00 pm UTC
- 10:00 pm BST
- 9:00 pm UTC
- 11:00 pm BST
- 10:00 pm UTC
Scheduling between the two
Working hours overlap from 10:00 am to 6:00 pm BST, which is 9:00 am to 5:00 pm UTC. Anything inside that window falls in the normal working day at both ends.
A note on BST: it can also mean Bangladesh Standard Time (UTC+6). This page means British Summer Time.
British Time (BST) is used in the whole United Kingdom. In winter the UK is on GMT; from late March to late October it is on BST, an hour ahead.
Coordinated Universal Time (UTC) is used in aviation, computing, and science worldwide. UTC never changes for daylight saving.