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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 Kōriyama vs Istanbul

Kōriyama keeps JST (UTC+9) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 6 hours behind Kōriyama; 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 Istanbul (15:00–18:00 your time).

Kōriyama and Istanbul hour by hour, with the working-hour overlap shaded
City00:00 in Kōriyama01:00 in Kōriyama02:00 in Kōriyama03:00 in Kōriyama04:00 in Kōriyama05:00 in Kōriyama06:00 in Kōriyama07:00 in Kōriyama08:00 in Kōriyama09:00 in Kōriyama10:00 in Kōriyama11:00 in Kōriyama12:00 in Kōriyama13:00 in Kōriyama14:00 in Kōriyama15:00 in Kōriyama16:00 in Kōriyama17:00 in Kōriyama18:00 in Kōriyama19:00 in Kōriyama20:00 in Kōriyama21:00 in Kōriyama22:00 in Kōriyama23:00 in Kōriyama
Kōriyama——000102030405060708091011121314151617181920212223
Istanbul——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Istanbul of Kōriyama?

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

What is the best time to call between Kōriyama and Istanbul?

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

Do Kōriyama and Istanbul change clocks on the same date?

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