Live · calculated from the IANA time-zone database
Time difference between New York and London
Short answer
London is 5 hours ahead of New York. Right now it is 08:36 in New York (EDT, UTC−4) and 13:36 in London (GMT+1, UTC+1).
Right now
New York · United States
08:36
Tuesday, September 15, 2026
Eastern Daylight Time · EDT · UTC−4
London · United Kingdom
13:36
Tuesday, September 15, 2026
British Summer Time · GMT+1 · UTC+1
Times at the moment this page was generated. Reload for a fresh reading.
Does the difference between New York and London change during the year?
Yes. For 337 days of 2026 the difference is 5 hours, but it moves whenever New York or London enters or leaves daylight saving time. Here is the full 2026 calendar (dates in UTC):
| From | Until | London vs New York |
|---|---|---|
| January 1 | March 8 | +5 h |
| March 8 | March 29 | +4 h |
| March 29 | October 25 | +5 h |
| October 25 | November 1 | +4 h |
| November 1 | December 31 | +5 h |
The highlighted row is the current period. Every date comes from each zone's official rules, not from a hand-typed table.
Best time to call London from New York (and vice versa)
The window in which both cities are inside their 9:00–17:00 working day runs from 09:00 to 12:00 in New York, which is 14:00 to 17:00 in London: 3 hours of overlap per day. For a call that disturbs nobody, aim for the middle of that window.
Outside that window, the practical rule: mornings in London are afternoons in New York. Avoid any hour that falls before 8:00 or after 21:00 in either city.
New York to London conversion table
Each New York hour and its equivalent in London today. Rows shaded green are working hours (9:00–17:00) in both cities at once.
| New York time · Tue, Sep 15 | London time |
|---|---|
| 00:00 | 05:00 |
| 01:00 | 06:00 |
| 02:00 | 07:00 |
| 03:00 | 08:00 |
| 04:00 | 09:00 |
| 05:00 | 10:00 |
| 06:00 | 11:00 |
| 07:00 | 12:00 |
| 08:00 | 13:00 |
| 09:00 | 14:00 |
| 10:00 | 15:00 |
| 11:00 | 16:00 |
| 12:00 | 17:00 |
| 13:00 | 18:00 |
| 14:00 | 19:00 |
| 15:00 | 20:00 |
| 16:00 | 21:00 |
| 17:00 | 22:00 |
| 18:00 | 23:00 |
| 19:00 | 00:00next day |
| 20:00 | 01:00next day |
| 21:00 | 02:00next day |
| 22:00 | 03:00next day |
| 23:00 | 04:00next day |
Looking for it the other way round? This page covers both directions: London to New York is the same difference with the sign flipped.
The two time zones
New York — America/New_York
New York keeps Eastern Time (ET): UTC−5 in winter (EST) and UTC−4 in summer (EDT), the reference zone for US finance, media and the whole East Coast from Boston to Miami.
London — Europe/London
London sits on the Greenwich meridian: GMT (UTC+0) in winter and British Summer Time (UTC+1) from the last Sunday of March to the last Sunday of October.
Frequently asked questions
How many hours difference between New York and London?
London is 5 hours ahead of New York. For most of the year (337 days) the difference is 5 hours; it shifts during the weeks when one of the two cities enters or leaves daylight saving time.
When it is 12:00 noon in New York, what time is it in London?
17:00 in London (at today's difference of 5 hours).
What is the best time for a meeting between New York and London?
Between 09:00 and 12:00 in New York, which is 14:00–17:00 in London: 3 hours of overlap inside both cities' 9:00–17:00 working day.
Do New York and London observe daylight saving time?
New York: yes. London: yes. Both change, but not necessarily on the same dates — see the transitions section on this page.
What time zone is New York in? And London?
New York: Eastern Daylight Time (America/New_York, UTC−4). London: British Summer Time (Europe/London, UTC+1).
Tools
Meeting grid — add both cities and click a slot
Time zone converter — any city, any time
Working hours overlap calculator
Daylight saving time 2027 — all dates
More time differences from New York
More time differences from London
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