When is the best overlapping meeting time between New York and London?

The ideal business window is 9:00 AM to 12:00 PM in New York, which corresponds to 2:00 PM to 5:00 PM in London, providing 3 shared working hours.

Does the gap between New York and London ever become 4 hours?

Yes. Because the US and UK change clocks on different dates in March and October, the time difference temporarily narrows to 4 hours for about two weeks each year.

How do I compare specific hours across both cities?

Use our interactive 24-hour visual slider above. Drag to any hour to inspect the corresponding time, daylight status, and office availability in both locations.

When is the best overlapping meeting time between New York and London?

The ideal business window is 9:00 AM to 12:00 PM in New York, which corresponds to 2:00 PM to 5:00 PM in London, providing 3 shared working hours.

Does the gap between New York and London ever become 4 hours?

Yes. Because the US and UK change clocks on different dates in March and October, the time difference temporarily narrows to 4 hours for about two weeks each year.

How do I compare specific hours across both cities?

Use our interactive 24-hour visual slider above. Drag to any hour to inspect the corresponding time, daylight status, and office availability in both locations.

Bilateral Time Zone Comparison

New York to London Time Difference

London is 5 hours ahead of New York. View the live 24-hour visual comparison slider, calculate overlapping business hours, and account for seasonal DST shifts.

Reference City

New York

UTC -4

Wednesday, September 23, 2026

3:51:59

America/New_York

Target City

London

UTC +1

Wednesday, September 23, 2026

8:51:59

Europe/London

Exact Difference Summary

London is 5 hours behind of New York

When it is 12:00 PM (Noon) in New York, it is 5 hours behind in London.

24-Hour Time Conversion & Business Overlap

Highlighted green rows represent mutual office hours (9:00 AM – 6:00 PM).

Shared Business Hours

New:00:00

Lon:05:00

New:01:00

Lon:06:00

New:02:00

Lon:07:00

New:03:00

Lon:08:00

New:04:00

Lon:09:00

New:05:00

Lon:10:00

New:06:00

Lon:11:00

New:07:00

Lon:12:00

New:08:00

Lon:13:00

New:09:00

Lon:14:00

New:10:00

Lon:15:00

New:11:00

Lon:16:00

New:12:00

Lon:17:00

New:13:00

Lon:18:00

New:14:00

Lon:19:00

New:15:00

Lon:20:00

New:16:00

Lon:21:00

New:17:00

Lon:22:00

New:18:00

Lon:23:00

New:19:00

Lon:00:00

New:20:00

Lon:01:00

New:21:00

Lon:02:00

New:22:00

Lon:03:00

New:23:00

Lon:04:00

Transcontinental Coordination

24-Hour Side-by-Side Time Comparison

London is 5 hours ahead of New York City. Coordinating across the Atlantic between Wall Street and the City of London represents one of the world's most active financial corridors.

Our interactive timeline helps remote teams and traders identify optimal meeting slots, compare live atomic clocks, and avoid scheduling mishaps during seasonal daylight saving divergence.