Current time in London, United Kingdom
London follows Greenwich Mean Time (GMT) during standard time and British Summer Time (BST) during Daylight Saving Time. Note: London sets the reference time for GMT (Greenwich Mean Time).
Quick facts:
- Time zone: GMT / BST
- Standard offset: UTC +0
- Summer time: UTC +1
- Daylight Saving: Observed
- IANA zone: Europe/London
Time difference from London:
- London ↔ Sydney: Sydney is usually 9–11 hours ahead (depending on DST in both cities)
- London ↔ Auckland: Auckland is usually 11–13 hours ahead
- London ↔ Los Angeles: LA is usually 8 hours behind (sometimes 7 during DST overlap)
- London ↔ New York: NY is usually 5 hours behind (sometimes 4 during DST transition weeks)
- London ↔ Dubai: Dubai is usually 4 hours ahead
Frequently Asked Questions
Does London use Daylight Saving Time?
Yes. London switches to BST (UTC +1) from late March to late October.
What time zone is London in?
Greenwich Mean Time (GMT), UTC +0:00, and British Summer Time (BST), UTC +1:00 during summer.
Is London the same time as Dublin?
Yes. Dublin and London follow the same clock changes throughout the year.



