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Time gap

Time differences

Time difference between New York and London

Good time for both on a weekday: 9:00–12:00 in New York = 14:00–17:00 in London.

 

 

 

  • Everyone at work
  • Work hours
  • Awake
  • Night
  • Weekend

Tap any column to see that moment in every city.

Different hours for each city
  • 5 hoursLondon ahead of New York
  • UTC−5 / UTC−4New York, January / July
  • UTC / UTC+1London, January / July
  • 3 hoursshared 9-to-5 time

How the gap moves through the year

London is 5 hours ahead of New York for about 11 months of the year.

London is 4 hours ahead of New York for about 4 weeks of the year.

From the second Sunday in March (when New York moves forward), London is 4 hours ahead of New York.

From the last Sunday in March (when London moves forward), London is 5 hours ahead of New York.

From the last Sunday in October (when London falls back), London is 4 hours ahead of New York.

From the first Sunday in November (when New York falls back), London is 5 hours ahead of New York.

New York moves its clocks forward one hour on the second Sunday in March at 2:00 am local time and back on the first Sunday in November at 2:00 am, switching between Eastern Standard Time (UTC−5) and Eastern Daylight Time (UTC−4).

London moves its clocks forward one hour on the last Sunday in March at 1:00 am local time and back on the last Sunday in October at 2:00 am, switching between Greenwich Mean Time (UTC) and British Summer Time (UTC+1).

Next clock change for this pair, as of when this page was built (2026-10-20): London falls back on Sun 25 October 2026.

Everything on this page also holds if you swap New York for Toronto, Havana, Montreal, Philadelphia or Port-au-Prince, or London for Birmingham, Dublin, Glasgow, Manchester or Lisbon — those cities follow exactly the same clock all year.

Working hours that overlap

In January, a 9-to-5 day in both cities shares 3 hours: 9:00 am–12:00 pm in New York, which is 2:00 pm–5:00 pm in London.

July gives exactly the same window.

Across the week

At 9:00 on a Monday morning in New York, it is 2:00 pm on Monday in London.

Daylight, distance and night calls

New York and London are about 5,570 km (3,460 miles) apart and 74° of longitude apart, which by the sun alone would be 5 hours.

New York's winter clock sits within 4 minutes of the sun, and London's sits within 2 minutes of the sun.

In mid-January the sun is up in New York from about 7:18 am to 4:52 pm, and the sun is up in London from about 7:59 am to 4:19 pm; both cities are in daylight at the same time for about 4 hours.

In mid-July the sun is up in New York from about 5:37 am to 8:27 pm, and the sun is up in London from about 5:00 am to 9:12 pm; both cities are in daylight at the same time for about 10 hours 30 minutes.

In January, none of a New York office day falls in London's night, and 2 hours of a London office day fall in New York's night.

In July, none of a New York office day falls in London's night, and 2 hours of a London office day fall in New York's night.

Hour-by-hour table and common mistakes — 2 more sections
Each hour in New York and the same moment in London, on a Wednesday in January and in July. Shaded: inside 9-to-5 in both.
New YorkLondon, JanuaryLondon, July
12:00 am5:00 am5:00 am
1:00 am6:00 am6:00 am
2:00 am7:00 am7:00 am
3:00 am8:00 am8:00 am
4:00 am9:00 am9:00 am
5:00 am10:00 am10:00 am
6:00 am11:00 am11:00 am
7:00 am12:00 pm12:00 pm
8:00 am1:00 pm1:00 pm
9:00 am2:00 pm2:00 pm
10:00 am3:00 pm3:00 pm
11:00 am4:00 pm4:00 pm
12:00 pm5:00 pm5:00 pm
1:00 pm6:00 pm6:00 pm
2:00 pm7:00 pm7:00 pm
3:00 pm8:00 pm8:00 pm
4:00 pm9:00 pm9:00 pm
5:00 pm10:00 pm10:00 pm
6:00 pm11:00 pm11:00 pm
7:00 pm12:00 am (+1 day)12:00 am (+1 day)
8:00 pm1:00 am (+1 day)1:00 am (+1 day)
9:00 pm2:00 am (+1 day)2:00 am (+1 day)
10:00 pm3:00 am (+1 day)3:00 am (+1 day)
11:00 pm4:00 am (+1 day)4:00 am (+1 day)

Common mistakes with New York and London

  • Assuming the gap is fixed. Both cities change their clocks, but not on the same weekend, so a recurring meeting can land an hour off for a few weeks.
  • Writing “EST” all year for New York. In summer the zone is Eastern Daylight Time; calendar apps handle it, but a typed time in an email can be read the wrong way.

Questions

Is London ahead of New York?
London is 5 hours ahead of New York for most of the year.
What is a good time for a meeting between New York and London?
With 9-to-5 days in both cities, 9:00 am–12:00 pm New York time is inside working hours in both, which gives 3 hours. The window can shift by an hour in the weeks when only one city has changed its clocks.
Does the time difference between New York and London change?
Yes. London is 5 hours ahead of New York for about 11 months of the year. London is 4 hours ahead of New York for about 4 weeks of the year.

Related time differences

New York time zone · London time zone · Plan with more cities

City names, coordinates and time zone assignments: GeoNames, licensed under CC BY 4.0 (selection and renaming of some cities by this site). Clock times are computed in your browser from the IANA time zone database. Sources and limits.