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Global ClockTime zone converter & meeting planner
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Working hours
Start
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 Istanbul vs São José

Istanbul keeps UTC+3 (UTC+3) and São José keeps UTC−3 (UTC−3) today. São José is 6 hours behind Istanbul; 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: 09:00–12:00 in São José (15:00–18:00 your time).

Istanbul and São José hour by hour, with the working-hour overlap shaded
City00:00 in Istanbul01:00 in Istanbul02:00 in Istanbul03:00 in Istanbul04:00 in Istanbul05:00 in Istanbul06:00 in Istanbul07:00 in Istanbul08:00 in Istanbul09:00 in Istanbul10:00 in Istanbul11:00 in Istanbul12:00 in Istanbul13:00 in Istanbul14:00 in Istanbul15:00 in Istanbul16:00 in Istanbul17:00 in Istanbul18:00 in Istanbul19:00 in Istanbul20:00 in Istanbul21:00 in Istanbul22:00 in Istanbul23:00 in Istanbul
Istanbul——000102030405060708091011121314151617181920212223
São José——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Istanbul and São José

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

Best hours to call

15:00 in Istanbul
Inside working hours on both sides
09:00 in São José
16:00 in Istanbul
Inside working hours on both sides
10:00 in São José
17:00 in Istanbul
Inside working hours on both sides
11:00 in São José

Where daylight saving pulls them apart

Neither Istanbul nor São José changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is São José of Istanbul?

São José is 6 hours behind Istanbul right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Istanbul and São José?

Any hour in 15:00–18:00 Istanbul time is inside working hours in both cities.

Do Istanbul and São José change clocks on the same date?

Neither city changes its clocks, so the gap between them never moves.