Time zone · Europe
BST
British Summer Time
British Summer Time (BST) is the UK's forward‑springing, forward‑to‑autumn ritual: from late March to late October, London and the rest of Britain UTC+1 means longer, brighter evenings perfect for after‑work strolls along the Thames or late pints in Soho, then the clocks fall back as autumn sets in.
Sunday, May 31, 2026
Current offset
UTC+01:00
Daylight · BST
Daylight saving
Active
Reverts 25 Oct 2026
IANA zones
1
1 observe DST, 0 don't
DST offset
—
No summer variant
About BST
Standard time, with a summer shift.
British Summer Time (BST) is the UK's forward‑springing, forward‑to‑autumn ritual: from late March to late October, London and the rest of Britain UTC+1 means longer, brighter evenings perfect for after‑work strolls along the Thames or late pints in Soho, then the clocks fall back as autumn sets in.
IANA zones · the technical identifiers
The zone that resolve to BST.
For software, always store the IANA identifier — never the abbreviation alone. The database keeps these zones distinct because their rules can, and historically did, diverge.
Cities currently on BST
The same hour, city by city.
6 cities · all UTC+01:00
Where BST is used
One country.
Same offset · UTC+01:00
Other zones at UTC+01:00 right now.
These named zones share BST's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about BST, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- When does BST start and end?
- BST starts on the last Sunday of March (clocks go forward at 01:00 GMT) and ends on the last Sunday of October (clocks go back at 02:00 BST).
- Does the whole UK use BST?
- Yes — all members of the region in the United Kingdom observe BST.
- What is the standard time zone for the UK?
- The standard time zone is Greenwich Mean Time (GMT), UTC+00:00.
- When is the representative zone currently in BST?
- The current offset is valid from late March through late October, with the next transition on the last Sunday of October 2026.
Free · Developer API
Time, as JSON.
Every IANA time zone with live offsets, DST status, and the countries and cities that use them — clean, dependable JSON. Sign up free and get an API key in seconds.
countries, cities, convert, DST transitions coming next.
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