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Global ClockTime zone converter & meeting planner
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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 Istanbul vs Ciudad Guayana

Istanbul keeps UTC+3 (UTC+3) and Ciudad Guayana keeps UTC−4 (UTC−4) today. Ciudad Guayana is 7 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: 09:00–11:00 in Ciudad Guayana (16:00–18:00 your time).

Istanbul and Ciudad Guayana 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
Ciudad Guayana——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Istanbul and Ciudad Guayana

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, Ciudad Guayana and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

16:00 in Istanbul
Inside working hours on both sides
09:00 in Ciudad Guayana
17:00 in Istanbul
Inside working hours on both sides
10:00 in Ciudad Guayana

Where daylight saving pulls them apart

Neither Istanbul nor Ciudad Guayana changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Ciudad Guayana of Istanbul?

Ciudad Guayana is 7 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 Ciudad Guayana?

Any hour in 16:00–18:00 Istanbul time is inside working hours in both cities.

Do Istanbul and Ciudad Guayana change clocks on the same date?

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