London to New York Time Conversion
Converting London time to New York time is a common need for transatlantic business, travel, and keeping in touch with friends and family. The time difference is typically 5 hours, with London ahead of New York. This gap creates a useful overlap for financial markets (LSE and NYSE) and for scheduling calls. Use the live converter above to instantly see the current time in both cities, and check out Time.now for a full world clock.
The London to New York Time Difference
London is generally 5 hours ahead of New York. This is because London operates on Greenwich Mean Time (GMT) (UTC+0) in winter and British Summer Time (BST) (UTC+1) in summer, while New York uses Eastern Standard Time (EST, UTC-5) in winter and Eastern Daylight Time (EDT, UTC-4) in summer. Both regions observe daylight saving time, but the clocks change on different dates, which can temporarily alter the difference. For example, during the brief period when the UK has switched to BST but the US has not yet switched to EDT, the difference is 4 hours. Conversely, in autumn, when the US has not yet fallen back, the difference can be 5 hours again. Always check the current offsets for precise scheduling.
London to New York Conversion Table
| London Time (BST/GMT) | New York Time (EDT/EST) |
|---|---|
| 00:00 (midnight) | 19:00 (previous day) |
| 03:00 | 22:00 (previous day) |
| 06:00 | 01:00 |
| 09:00 | 04:00 |
| 12:00 (noon) | 07:00 |
| 15:00 | 10:00 |
| 18:00 | 13:00 |
| 21:00 | 16:00 |
Best Times to Schedule Calls
The best overlap for a call between London and New York is typically from 14:00 to 17:00 London time (09:00 to 12:00 New York time). This window allows both parties to be within normal business hours. For a wider overlap, consider 13:00-18:00 London time (08:00-13:00 New York time). The table below shows common meeting times.
| London Time | New York Time | Suitability |
|---|---|---|
| 08:00 | 03:00 | Too early for New York |
| 12:00 | 07:00 | Early for New York |
| 14:00 | 09:00 | Good start |
| 16:00 | 11:00 | Ideal |
| 18:00 | 13:00 | End of overlap |
| 20:00 | 15:00 | Late for London |
For more city comparisons, see London To Los Angeles Time or London To Sydney Time. If you need to check the current time in London, visit time in London. For a worldwide view, TimeRight.Now and CurrentTime.now offer multi-city clocks.
Frequently Asked Questions
How many hours ahead is London than New York?
London is typically 5 hours ahead of New York. During the brief periods when daylight saving transitions are misaligned, the difference can be 4 hours.
Does the time difference change during the year?
Yes, because the UK and US start and end daylight saving time on different dates. The difference is usually 5 hours, but can be 4 hours for a few weeks in spring and autumn.
What is the best time to call New York from London?
The best time is between 14:00 and 17:00 London time (09:00 to 12:00 New York time), which falls within normal business hours in both cities.
Is New York ever the same time as London?
No, New York is always behind London. The maximum difference is 5 hours; the minimum is 4 hours.
What are the UTC offsets for London and New York?
London uses UTC+0 (GMT) in winter and UTC+1 (BST) in summer. New York uses UTC-5 (EST) in winter and UTC-4 (EDT) in summer.
How do I convert London time to New York time quickly?
Subtract 5 hours from London time (or 4 during the brief misaligned period). Use the live converter on this page or visit GMT vs UTC for more on time standards.