Time difference between New York and Istanbul

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because New York goes forward on the second Sunday in March and back on the first Sunday in November and Istanbul does not change its clocks.

Istanbul stays put all year while New York moves, so a meeting fixed in Istanbul's calendar shifts by an hour twice a year at New York's end.

About New York and Istanbul

New York is UTC−5 in winter and UTC−4 from March to November, and it changes clocks on different weekends from Europe — a fortnight in March and a week in autumn when the transatlantic gap is an hour off what everyone expects.

Türkiye abandoned daylight saving in 2016 and fixed the clocks at UTC+3 permanently, so it is on what used to be its summer time all year. Winter mornings in Istanbul are correspondingly dark, and the gap to Europe changes twice a year from Europe's side alone.

What 7 hours actually costs you

The window is 1 hour wide and that is all there is. 9:00 AM–10:00 AM in New York is 4:00 PM–5:00 PM in Istanbul, and anything outside it puts somebody at their desk when they are not meant to be. A pair this tight is worth putting in a calendar rather than agreeing each time.

When they can both be at their desks

Nine-to-five in both cities overlaps for 1 hour — 9:00 AM to 10:00 AM in New York, the same moment as 4:00 PM to 5:00 PM in Istanbul.

New York

Istanbul

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How far apart New York and Istanbul are

The shortest path over the Earth's surface between the two is 8,070 km (5,014 miles). Flown along that line, an airliner at cruising speed takes roughly 10 hours 15 minutes in the air — actual routings add to it, and whether a nonstop service exists depends on the airlines rather than the distance.

Over that distance you cross 7 hours of clock, which is where jet lag comes from: the body shifts by about an hour a day, so 7 hours takes most people 7 days or so to absorb. Flying east to Istanbul is the harder direction — you lose the hours and have to fall asleep earlier than your body wants.

New York to Istanbul, hour by hour

On the usual gap of 7 hours.

Frequently asked questions