Time Zone: New York City to London
Time zone difference between New York City and London. UTC offsets and best meeting times.
Time difference: New York City and London
New York City is on EDT (UTC-4) and London is on GMT+1 (UTC+1), a gap of 5 hours. London is ahead — so when it is 12:00 in New York City, it is already 17:00 in London. Going the other way, when it is 12:00 in London, it is only 07:00 in New York City.
For calls, video meetings or messages between New York City and London, aim for the overlap in normal waking hours on both sides rather than assuming a shared 9-to-5 — with a 5h gap, one side may need to join early morning or late evening. Business hours in New York City typically start later than in London, so scheduling around late morning to early afternoon in the behind city usually finds the widest overlap.
Note that this 5h difference reflects current UTC offsets and can shift by an hour around daylight saving time (DST) clock changes if only one city observes it. If you are flying this route, check our jet lag calculator for New York City to London to plan sleep adjustment, and the flight time tool to work out local arrival time.
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Frequently Asked Questions
What is the time difference between New York City and London?
The time difference between New York City (UTC-4) and London (UTC+1) is 5 hours. London is 5h ahead New York City.
What time zone is London in?
London is in the GMT+1 time zone (UTC+1).
What time zone is New York City in?
New York City is in the EDT time zone (UTC-4).
Is London ahead of or behind New York City?
London is ahead. London is 5 hours ahead of New York City, so clocks in New York City show an earlier time than in London.
When it's noon in New York City, what time is it in London?
When it is 12:00 in New York City (UTC-4), it is 17:00 in London (UTC+1).
Does the time difference between New York City and London change with daylight saving time?
Possibly. This 5h difference is based on current UTC offsets. If only one of New York City or London observes daylight saving time (DST), the gap can shift by an hour on clock-change weekends in spring and autumn — worth double-checking close to your travel or call date.