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Global ClockTime zone converter & meeting planner
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Working hours
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09
End
18
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AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in Sioux Falls vs Istanbul

Sioux Falls keeps CDT (UTC−5) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 8 hours ahead of Sioux Falls; the rows below read both clocks live.

The working day, side by side

Hours shaded in both rows are inside working hours in both cities: 17:00–18:00 in Istanbul (09:00–10:00 your time).

Sioux Falls and Istanbul hour by hour, with the working-hour overlap shaded
City00:00 in Sioux Falls01:00 in Sioux Falls02:00 in Sioux Falls03:00 in Sioux Falls04:00 in Sioux Falls05:00 in Sioux Falls06:00 in Sioux Falls07:00 in Sioux Falls08:00 in Sioux Falls09:00 in Sioux Falls10:00 in Sioux Falls11:00 in Sioux Falls12:00 in Sioux Falls13:00 in Sioux Falls14:00 in Sioux Falls15:00 in Sioux Falls16:00 in Sioux Falls17:00 in Sioux Falls18:00 in Sioux Falls19:00 in Sioux Falls20:00 in Sioux Falls21:00 in Sioux Falls22:00 in Sioux Falls23:00 in Sioux Falls
Sioux Falls——000102030405060708091011121314151617181920212223
Istanbul——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Sioux Falls and Istanbul

Open in the PlannerAdd more cities, find a meeting time that works for everyone, then share it as a link.Open in Watch ViewKeep Sioux Falls, Istanbul and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

09:00 in Sioux Falls
Inside working hours on both sides
17:00 in Istanbul

Where daylight saving pulls them apart

Sioux Falls next changes on Sunday 1 November 2026. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.

Also useful

Common questions

How many hours ahead is Istanbul of Sioux Falls?

Istanbul is 8 hours ahead of Sioux Falls right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Sioux Falls and Istanbul?

Any hour in 09:00–10:00 Sioux Falls time is inside working hours in both cities.

Do Sioux Falls and Istanbul change clocks on the same date?

Only one of them does, so the gap between them changes twice a year even though neither city moved relative to the sun.