New York to London Time Converter
New York is 5 hours behind London for most of the year — but only 4 hours behind during the short windows when the US and UK are on different daylight saving schedules. Use the converter below for the exact gap on any date.
Typical time difference
New York (Eastern Time) is normally 5 hours behind London. Both the US and UK observe daylight saving time, but on slightly different schedules: the US moves clocks forward about 2–3 weeks before the UK in spring, and moves them back about a week before the UK in autumn. During those short windows, the gap narrows to 4 hours instead of 5. Outside those transition periods, 5 hours is reliable.
Best overlap for meetings
With a 5-hour gap, there's a solid working-hours overlap: roughly 8am–1pm New York time lines up with 1pm–6pm London time. Late New York afternoons (after 1pm ET) push London into evening, and early London mornings (before 1pm GMT) push New York into the middle of the night — so that midday-to-early-afternoon window in New York is generally the sweet spot for calls involving both cities.