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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 San Francisco vs Istanbul

San Francisco keeps PDT (UTC−7) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 10 hours ahead of San Francisco; the rows below read both clocks live.

The working day, side by side

The working days do not meet. there is no working-hour overlap with Istanbul — the nearest workable window is 07:00–08:00 your time (17:00 there).

San Francisco and Istanbul hour by hour, with the working-hour overlap shaded
City00:00 in San Francisco01:00 in San Francisco02:00 in San Francisco03:00 in San Francisco04:00 in San Francisco05:00 in San Francisco06:00 in San Francisco07:00 in San Francisco08:00 in San Francisco09:00 in San Francisco10:00 in San Francisco11:00 in San Francisco12:00 in San Francisco13:00 in San Francisco14:00 in San Francisco15:00 in San Francisco16:00 in San Francisco17:00 in San Francisco18:00 in San Francisco19:00 in San Francisco20:00 in San Francisco21:00 in San Francisco22:00 in San Francisco23:00 in San Francisco
San Francisco——000102030405060708091011121314151617181920212223
Istanbul——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with San Francisco 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 San Francisco, Istanbul and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

there is no working-hour overlap with Istanbul — the nearest workable window is 07:00–08:00 your time (17:00 there).

Where daylight saving pulls them apart

San Francisco 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 San Francisco?

Istanbul is 10 hours ahead of San Francisco right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between San Francisco and Istanbul?

There is no hour inside working hours in both cities. 07:00–08:00 your time (17:00 there) is the cheapest compromise, and one side is taking a shoulder hour.

Do San Francisco 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.