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09
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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 Porto Alegre

Istanbul keeps UTC+3 (UTC+3) and Porto Alegre keeps UTC−3 (UTC−3) today. Porto Alegre 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 Porto Alegre (15:00–18:00 your time).

Istanbul and Porto Alegre 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
Porto Alegre——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Istanbul and Porto Alegre

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, Porto Alegre 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 Porto Alegre
16:00 in Istanbul
Inside working hours on both sides
10:00 in Porto Alegre
17:00 in Istanbul
Inside working hours on both sides
11:00 in Porto Alegre

Where daylight saving pulls them apart

Neither Istanbul nor Porto Alegre changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Porto Alegre of Istanbul?

Porto Alegre 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 Porto Alegre?

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

Do Istanbul and Porto Alegre change clocks on the same date?

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