Best time to call New York from London
Best window: 2 PM–5 PM in London (9 AM–12 PM in New York), both cities are inside 9 AM–5 PM office hours. New York is 5 hours behind London. (as of July 2026, recalculated live in your browser.)
Live from your device clock via the IANA time-zone database built into your browser.
Hour-by-hour overlap
Both 9 AM–5 PM Both awake (7 AM–10 PM) One side asleep
| London | New York | Call quality |
|---|---|---|
| 12 AM | 7 PM −1 day | Too early / too late |
| 1 AM | 8 PM −1 day | Too early / too late |
| 2 AM | 9 PM −1 day | Too early / too late |
| 3 AM | 10 PM −1 day | Too early / too late |
| 4 AM | 11 PM −1 day | Too early / too late |
| 5 AM | 12 AM | Too early / too late |
| 6 AM | 1 AM | Too early / too late |
| 7 AM | 2 AM | Too early / too late |
| 8 AM | 3 AM | Too early / too late |
| 9 AM | 4 AM | Too early / too late |
| 10 AM | 5 AM | Too early / too late |
| 11 AM | 6 AM | Too early / too late |
| 12 PM | 7 AM | One side off-hours |
| 1 PM | 8 AM | One side off-hours |
| 2 PM | 9 AM | Both in office hours |
| 3 PM | 10 AM | Both in office hours |
| 4 PM | 11 AM | Both in office hours |
| 5 PM | 12 PM | One side off-hours |
| 6 PM | 1 PM | One side off-hours |
| 7 PM | 2 PM | One side off-hours |
| 8 PM | 3 PM | One side off-hours |
| 9 PM | 4 PM | One side off-hours |
| 10 PM | 5 PM | Too early / too late |
| 11 PM | 6 PM | Too early / too late |
Grid prerendered July 2026 and recomputed in your browser on load, so daylight-saving switches are always reflected. Both London and New York observe daylight saving time, but they switch on different dates, the gap between them shifts for a few weeks each spring and autumn.
Frequently asked questions
How many hours ahead is New York of London?
New York is 5 hours behind London. (Checked July 2026; where daylight saving applies, the gap can shift by an hour part of the year, the page recalculates live.)
What time is 9 AM in London in New York?
9 AM in London is 4 AM in New York.
Do London and New York change clocks for daylight saving?
Both London and New York observe daylight saving time, but they switch on different dates, the gap between them shifts for a few weeks each spring and autumn.
Which hours work for a call?
Best window: 2 PM–5 PM in London (9 AM–12 PM in New York), both cities are inside 9 AM–5 PM office hours.