London to New York Time Converter

London's Morning Passes Before New York Opens

London Hours in New York Time

Full 24-hour reference table. Use the live clocks above for the exact current offset.

"prev day" = converted time falls on the previous calendar day.

The Three-Hour Window

London's 2:00 to 5:00 PM is 9:00 AM to 12:00 PM in New York, inside both working days, so a transatlantic call belongs in the London afternoon. In the weeks when the gap is 4 hours, the window starts at 1:00 PM in London and runs four hours.

Each row is an hour of the London day. A check mark means both cities are inside a 9 AM to 5 PM working day at that moment.

• GMT → EST: 3 hours shared, 2:00 PM to 5:00 PM London time.
• BST → EDT: 3 hours shared, 2:00 PM to 5:00 PM London time.
• GMT → EDT: 4 hours shared, 1:00 PM to 5:00 PM London time.

The Weeks When It Is 4 Hours

The US and the UK change clocks on different dates, so two short stretches have only one side on summer time:

• From the second Sunday in March (New York moves to EDT) to the last Sunday in March (London moves to BST): 2 to 3 weeks.
• From the last Sunday in October (London moves back to GMT) to the first Sunday in November (New York moves back to EST): 1 week.

2:00 PM in London is 9:00 AM in New York on the usual gap and 10:00 AM in those weeks.

London to New York in the Four-Hour Weeks

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