London and New York: plan a meeting across time zones

The time difference

For most of the year, London is 5 hours ahead of New York. That gap does not hold all year — here is how it actually moves:

• 1 January to 7 March: London is 5 hours ahead of New York
• 8 March to 28 March: London is 4 hours ahead of New York
• 29 March to 24 October: London is 5 hours ahead of New York
• 25 October to 31 October: London is 4 hours ahead of New York
• 1 November to 31 December: London is 5 hours ahead of New York

Best time to meet

A one-hour meeting starting around 2 PM in London lands at 9 AM in New York — inside normal working hours (9 AM–5 PM) for both sides.

Clock changes to plan around

• London changes clocks — 2026: 29 March and 25 October; 2027: 28 March and 31 October.
• New York changes clocks — 2026: 8 March and 1 November; 2027: 14 March and 7 November.

Upcoming public holidays

• 25 December — London: Christmas Day
• 26 December — London: Boxing Day
• 28 December — London: Boxing Day (observed)
• 1 January 2027 — London: New Year's Day
• 12 October — New York: Columbus Day
• 11 November — New York: Veterans Day
• 26 November — New York: Thanksgiving Day
• 25 December — New York: Christmas Day

Holiday data uses country-level public calendars and may miss regional observances or company shutdowns — confirm with your participant if the date matters.

Questions about London and New York

What time is it in New York when it is 9 AM in London?

For most of the year, 9 AM in London is 4 AM in New York (UTC+1 against UTC-4). During the weeks listed above when the gap shifts, it moves by an hour. Open the planner for a specific date.

Does London or New York change clocks first?

Both cities observe daylight saving, but not always on the same dates — see the clock-change dates above.

Is there a public holiday in London or New York soon?

London: Christmas Day on 25 December. New York: Columbus Day on 12 October.