Current Time in BST
British Summer Time
About BST British Summer Time
The daylight saving time used in the United Kingdom during the summer months. It is one hour ahead of Greenwich Mean Time (GMT). Typically runs from the last Sunday in March to the last Sunday in October.
UTC Offset: +01:00
BST at a glance
| Right now | 18:47 on Tuesday |
|---|---|
| UTC offset | UTC+01:00 (1 hour ahead of UTC) |
| Full name | British Summer Time |
| Countries | 4 |
| IANA zones | 7 |
What is BST?
BST is a time zone that is currently UTC+01:00 - that's 1 hour ahead of UTC. Its full name is British Summer Time. Right now the local time on BST is 18:47. Today 4 countries (including Guernsey, Isle of Man and Jersey) and 7 IANA database zones sit at this offset, which is why BST is a useful shorthand even though the exact local rules differ from place to place.
How to convert BST to UTC
For quick planning, use today's offset as a rule of thumb: 12:00 UTC = 13:00 local time, and 09:00 local time = 08:00 UTC. The live clock above is the safest reference when daylight saving or regional rules may apply.
Which countries use BST?
BST is used across Guernsey, Isle of Man, Jersey and United Kingdom. Open a country to see all of its cities and their local time.
IANA time zones in BST
BST maps to the IANA database zones Europe/Belfast, Europe/Guernsey, Europe/Isle_of_Man, Europe/Jersey, Europe/London and GB, among 7 in total. Each zone page shows its exact rules, including any daylight saving changes.
💡 Tip: Comparing times? BST is 1 hour ahead of UTC. Use the IANA links and country links on this page when you need the exact local rule for a real place, not just the offset.
BST - Frequently asked questions
What is BST?
BST is a time zone currently UTC+01:00 (1 hour ahead of UTC). Its full name is British Summer Time.
What is the UTC offset of BST?
BST is UTC+01:00 right now - 1 hour ahead of UTC.
Which countries are on BST?
BST is used in Guernsey, Isle of Man, Jersey and United Kingdom.
What time is it in BST now?
The current time on BST is 18:47 on Tuesday. The clock above updates every second.
How Alarm.now explains BST
Abbreviation, offset, and IANA zones
BST is shown as a time-zone group for British Summer Time with offset +01:00. The page links the abbreviation to the IANA zones and countries that use it, so users and search engines can distinguish a short label from an exact time-zone rule set.
When to use a specific IANA page
Use this group page for an overview of the abbreviation and offset. Use a linked IANA time-zone page when you need exact daylight-saving rules for a calendar, app, or future-date comparison.