Time difference between Singapore and Istanbul

The gap holds all year

Neither city changes its clocks — Singapore does not change its clocks and Istanbul does not change its clocks — so 5 hours is the difference in January and in July alike. That is worth knowing about this pair specifically, because most international pairs do move and a recurring meeting between them does not need checking twice a year.

About Singapore and Istanbul

Singapore is UTC+8 despite sitting almost on the equator at a longitude that suggests UTC+7. It moved forward in 1982 to align with Malaysia and never moved back, so solar noon falls at about 1 PM.

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 5 hours actually costs you

The window is 3 hours wide and that is all there is. 2:00 PM–5:00 PM in Singapore is 9:00 AM–12:00 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 3 hours — 2:00 PM to 5:00 PM in Singapore, the same moment as 9:00 AM to 12:00 PM in Istanbul.

Singapore

Istanbul

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How far apart Singapore and Istanbul are

The shortest path over the Earth's surface between the two is 8,642 km (5,370 miles). Flown along that line, an airliner at cruising speed takes roughly 10 hours 55 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 5 hours of clock, which is where jet lag comes from: the body shifts by about an hour a day, so 5 hours takes most people 5 days or so to absorb. Flying west to Istanbul is the easier direction — you gain the hours, and staying up later comes more naturally than going to bed early.

Singapore to Istanbul, hour by hour

On the usual gap of 5 hours.

Frequently asked questions