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Global ClockTime zone converter & meeting planner
SETTINGS
Clock
Working hours
Start
09
End
18
Theme

AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in Busan vs Cairo

Busan keeps KST (UTC+9) and Cairo keeps EEST (UTC+3) today. Cairo is 6 hours behind Busan; 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 Cairo (15:00–18:00 your time).

Busan and Cairo hour by hour, with the working-hour overlap shaded
City00:00 in Busan01:00 in Busan02:00 in Busan03:00 in Busan04:00 in Busan05:00 in Busan06:00 in Busan07:00 in Busan08:00 in Busan09:00 in Busan10:00 in Busan11:00 in Busan12:00 in Busan13:00 in Busan14:00 in Busan15:00 in Busan16:00 in Busan17:00 in Busan18:00 in Busan19:00 in Busan20:00 in Busan21:00 in Busan22:00 in Busan23:00 in Busan
Busan——000102030405060708091011121314151617181920212223
Cairo——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Busan and Cairo

Best hours to call

15:00 in Busan
Inside working hours on both sides
09:00 in Cairo
16:00 in Busan
Inside working hours on both sides
10:00 in Cairo
17:00 in Busan
Inside working hours on both sides
11:00 in Cairo

Where daylight saving pulls them apart

Cairo next changes on Thursday 29 October 2026. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.

Also useful

Common questions

How many hours ahead is Cairo of Busan?

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

What is the best time to call between Busan and Cairo?

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

Do Busan and Cairo change clocks on the same date?

Only one of them does, so the gap between them changes twice a year even though neither city moved relative to the sun.