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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 Ciudad Guayana vs Istanbul

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

Ciudad Guayana and Istanbul hour by hour, with the working-hour overlap shaded
City00:00 in Ciudad Guayana01:00 in Ciudad Guayana02:00 in Ciudad Guayana03:00 in Ciudad Guayana04:00 in Ciudad Guayana05:00 in Ciudad Guayana06:00 in Ciudad Guayana07:00 in Ciudad Guayana08:00 in Ciudad Guayana09:00 in Ciudad Guayana10:00 in Ciudad Guayana11:00 in Ciudad Guayana12:00 in Ciudad Guayana13:00 in Ciudad Guayana14:00 in Ciudad Guayana15:00 in Ciudad Guayana16:00 in Ciudad Guayana17:00 in Ciudad Guayana18:00 in Ciudad Guayana19:00 in Ciudad Guayana20:00 in Ciudad Guayana21:00 in Ciudad Guayana22:00 in Ciudad Guayana23:00 in Ciudad Guayana
Ciudad Guayana——000102030405060708091011121314151617181920212223
Istanbul——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Istanbul of Ciudad Guayana?

Istanbul is 7 hours ahead of Ciudad Guayana right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Ciudad Guayana and Istanbul?

Any hour in 09:00–11:00 Ciudad Guayana time is inside working hours in both cities.

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

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