London time zone
Greenwich Mean Time (GMT) / British Summer Time (BST) — UTC+0 in winter (GMT), UTC+1 in summer (BST).
London sits on the Greenwich meridian, the historic zero point of world time. The live clock above shows the current time in London — GMT in winter and British Summer Time in summer.
- World time zones are measured from Greenwich in London (UTC)
- The UK moves to British Summer Time (UTC+1) from late March to late October
- New York is 5 hours behind London for most of the year
Frequently Asked Questions
Is London always on GMT?
No — London uses GMT (UTC+0) only in winter. From late March to late October the UK observes British Summer Time (BST, UTC+1). The clock above always shows the correct one.
What is the time difference between London and New York?
Usually 5 hours — noon in London is 7 AM in New York. For a couple of weeks a year the gap shifts to 4 hours while the two countries change their clocks on different dates.
Time in other cities
Compare several cities side by side with the world clock.