London to New York conversion chart
Every full hour of Tuesday, October 13, 2026 in London, and the time in New York. Pick another date in the converter and the chart follows.
| London (BST) | New York (EDT) |
|---|---|
| 12:00 AM 00:00 | 7:00 PM 19:00day before |
| 1:00 AM 01:00 | 8:00 PM 20:00day before |
| 2:00 AM 02:00 | 9:00 PM 21:00day before |
| 3:00 AM 03:00 | 10:00 PM 22:00day before |
| 4:00 AM 04:00 | 11:00 PM 23:00day before |
| 5:00 AM 05:00 | 12:00 AM 00:00 |
| 6:00 AM 06:00 | 1:00 AM 01:00 |
| 7:00 AM 07:00 | 2:00 AM 02:00 |
| 8:00 AM 08:00 | 3:00 AM 03:00 |
| 9:00 AM 09:00 | 4:00 AM 04:00 |
| 10:00 AM 10:00 | 5:00 AM 05:00 |
| 11:00 AM 11:00 | 6:00 AM 06:00 |
| 12:00 PM 12:00 | 7:00 AM 07:00 |
| 1:00 PM 13:00 | 8:00 AM 08:00 |
| 2:00 PM 14:00 | 9:00 AM 09:00 |
| 3:00 PM 15:00 | 10:00 AM 10:00 |
| 4:00 PM 16:00 | 11:00 AM 11:00 |
| 5:00 PM 17:00 | 12:00 PM 12:00 |
| 6:00 PM 18:00 | 1:00 PM 13:00 |
| 7:00 PM 19:00 | 2:00 PM 14:00 |
| 8:00 PM 20:00 | 3:00 PM 15:00 |
| 9:00 PM 21:00 | 4:00 PM 16:00 |
| 10:00 PM 22:00 | 5:00 PM 17:00 |
| 11:00 PM 23:00 | 6:00 PM 18:00 |
Time difference over the year
The gap between London and New York for the next 12 months, with clock changes on both sides taken into account:
- Oct 13, 2026 to Oct 24, 2026: New York is 5 hours behind London
- Oct 25, 2026 to Oct 31, 2026: New York is 4 hours behind London
- Nov 1, 2026 to Mar 13, 2027: New York is 5 hours behind London
- Mar 14, 2027 to Mar 27, 2027: New York is 4 hours behind London
- Mar 28, 2027 to Oct 12, 2027: New York is 5 hours behind London
Daylight saving time in London and New York
London turns the clocks forward from GMT to BST at 1:00 AM on the last Sunday in March and back at 2:00 AM on the last Sunday in October, the dates the UK government publishes. In 2026 the changes fall on March 29 and October 25, in 2027 on March 28 and October 31.
New York turns the clocks forward from EST to EDT at 2:00 AM on the second Sunday in March and back at 2:00 AM on the first Sunday in November, a schedule set by the Energy Policy Act of 2005. In 2026 the changes fall on March 8 and November 1, in 2027 on March 14 and November 7.
The gap takes 2 values across 2026 and 2027: 5 hours, 4 hours. 5 hours holds on most days; the highlighted rows are the 49 days with another gap, because one side has changed its clocks and the other has not:
| From | To | London | New York | New York is |
|---|---|---|---|---|
| January 1, 2026 | March 7, 2026 | GMT (UTC) | EST (UTC−5) | 5 h behind |
| March 8, 2026 | March 28, 2026 | GMT (UTC) | EDT (UTC−4) | 4 h behind |
| March 29, 2026 | October 24, 2026 | BST (UTC+1) | EDT (UTC−4) | 5 h behind |
| October 25, 2026 | October 31, 2026 | GMT (UTC) | EDT (UTC−4) | 4 h behind |
| November 1, 2026 | March 13, 2027 | GMT (UTC) | EST (UTC−5) | 5 h behind |
| March 14, 2027 | March 27, 2027 | GMT (UTC) | EDT (UTC−4) | 4 h behind |
| March 28, 2027 | October 30, 2027 | BST (UTC+1) | EDT (UTC−4) | 5 h behind |
| October 31, 2027 | November 6, 2027 | GMT (UTC) | EDT (UTC−4) | 4 h behind |
| November 7, 2027 | December 31, 2027 | GMT (UTC) | EST (UTC−5) | 5 h behind |
Office hours that overlap
With a 9:00 AM to 5:00 PM workday in both cities, this is the shared window for each gap of the year:
- 5 hours apart (GMT with EST, BST with EDT), 337 days of 2026: 3 hours of shared office time: 2:00 PM to 5:00 PM in London is 9:00 AM to 12:00 PM in New York.
- 4 hours apart (GMT with EDT), 28 days of 2026: 4 hours of shared office time: 1:00 PM to 5:00 PM in London is 9:00 AM to 1:00 PM in New York.
Which time zones London and New York use
London is on UK time (GMT in winter, BST in summer), which is used in the whole United Kingdom. New York is on Eastern Time (EST in winter, EDT in summer), used in New York, Washington, Miami and Atlanta.
Comparing more than two places? Add as many cities as you need in the time zone converter, or find a slot that works for everyone with the meeting planner. For timestamps from logs or APIs, the Unix timestamp converter turns them into readable dates.
Sources
The clock change rules above come from these pages. The dates, the gap table and the office hours are computed from them and checked against the time zone data at build time.
- GOV.UK: When do the clocks change?
- NIST: Daylight Saving Time rules
- timeanddate.com: clock changes in New York
More city pairs
- London to New York
- New York to London
- London to Dubai
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- Los Angeles to London
- New York to Tokyo
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- Los Angeles to New York
- New York to Sydney
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- Dubai to New York
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- New York to Singapore
- New York to Hong Kong
- New York to Mumbai
- New York to Paris
- New York to Toronto
- New York to Mexico City
- New York to São Paulo
- Los Angeles to Tokyo
- Chicago to London
- Tokyo to Sydney
- Sydney to Auckland
- Singapore to Sydney
- Dubai to Mumbai
- Madrid to Mexico City
Frequently asked questions
What is the time difference between London and New York?
New York is 5 hours behind London on 344 days of the next 12 months, and 4 hours behind on 21 days. The gap moves because the two cities change their clocks on different dates, or only one of them does.
What time is it in New York when it is 9 AM in London?
Most of the year, 9 AM in London is 4:00 AM in New York. In the weeks when New York is 4 hours behind London, it is 5:00 AM.
What time is it in London when it is noon in New York?
Noon in New York is 5:00 PM in London for most of the year, and 4:00 PM in the weeks with the other gap.
When do London and New York change their clocks?
London changes its clocks on March 29 and October 25 in 2026 and on March 28 and October 31 in 2027. New York changes its clocks on March 8 and November 1 in 2026 and on March 14 and November 7 in 2027. Between those dates the gap is 4 hours instead of 5 hours.
What are good hours for a call between London and New York?
It depends on the time of year. 5 hours apart (GMT with EST, BST with EDT): 3 hours of shared office time: 2:00 PM to 5:00 PM in London is 9:00 AM to 12:00 PM in New York. 4 hours apart (GMT with EDT): 4 hours of shared office time: 1:00 PM to 5:00 PM in London is 9:00 AM to 1:00 PM in New York. The times assume a 9 AM to 5 PM workday in both cities; early starts or late evenings widen the window.