🇬🇧 Time Zones in United Kingdom
The United Kingdom uses a single time zone: Greenwich Mean Time (GMT) in winter and British Summer Time (BST, UTC+1) in summer. GMT is the world's reference time — UTC+0 — and the prime meridian runs through the Royal Observatory in Greenwich, London. The UK switches to BST on the last Sunday in March and back to GMT on the last Sunday in October.
Time Zone Overview
| Time Zone(s) | UTC Offset | DST |
|---|---|---|
| GMT (UTC+0) in winter, BST (UTC+1) in summer | See details above | The UK observes DST from the last Sunday in March to the last Sunday in October. |
Major Cities in United Kingdom
Click any city to see the current local time:
Quick Facts
- Number of time zones: 1
- Daylight saving: The UK observes DST from the last Sunday in March to the last Sunday in October.
Frequently Asked Questions
How many time zones does United Kingdom have?
United Kingdom has 1 time zone(s): GMT (UTC+0) in winter, BST (UTC+1) in summer.
Does United Kingdom observe daylight saving time?
The UK observes DST from the last Sunday in March to the last Sunday in October.
Time in Daily Life
The UK uses GMT in winter and BST (UTC+1) with EU-aligned daylight saving in summer, so London shifts with Dublin on the same late-March Sunday.
The standard workday in London runs about 09:00 to 17:30, and the country's single zone keeps island-wide timing simple despite its length.
Long summer evenings see light past 21:00, and the pub gardens and parks keep city centres lively well into the night.
The August holiday season sees coastal towns fill as offices thin out, and the winter's early dark makes the Christmas lights and markets the centre of evening life from November.