CET to KST Time Converter
KST is 7 hours ahead of CET. Continental western Europe is currently on CEST (UTC+2:00), and KST is UTC+9:00.
Best Time to Call Between CET and KST
Both zones are inside normal business hours between 9:00 AM and 10:00 AM CET — that's 4:00 PM to 5:00 PM KST. That's a 1-hour window.
both at work CET only KST only neither — hours along the strip are CET.
Common Times Converted
CET on the left, KST on the right.
CET to KST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| CET | KST | Working hours |
|---|---|---|
| 12:00 AM | 7:00 AM | — |
| 1:00 AM | 8:00 AM | — |
| 2:00 AM | 9:00 AM | KST only |
| 3:00 AM | 10:00 AM | KST only |
| 4:00 AM | 11:00 AM | KST only |
| 5:00 AM | 12:00 PM | KST only |
| 6:00 AM | 1:00 PM | KST only |
| 7:00 AM | 2:00 PM | KST only |
| 8:00 AM | 3:00 PM | KST only |
| 9:00 AM | 4:00 PM | Both zones |
| 10:00 AM | 5:00 PM | CET only |
| 11:00 AM | 6:00 PM | CET only |
| 12:00 PM | 7:00 PM | CET only |
| 1:00 PM | 8:00 PM | CET only |
| 2:00 PM | 9:00 PM | CET only |
| 3:00 PM | 10:00 PM | CET only |
| 4:00 PM | 11:00 PM | CET only |
| 5:00 PM | 12:00 AM next day | — |
| 6:00 PM | 1:00 AM next day | — |
| 7:00 PM | 2:00 AM next day | — |
| 8:00 PM | 3:00 AM next day | — |
| 9:00 PM | 4:00 AM next day | — |
| 10:00 PM | 5:00 AM next day | — |
| 11:00 PM | 6:00 AM next day | — |
What CET and KST Actually Are
CET — Central European Time
Paris, Berlin, Madrid, Rome, Amsterdam, Vienna, Warsaw, Stockholm. Standing at UTC+1:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to CET. Most of continental Europe moves to CEST (UTC+2) for the summer.
Central European Time spans a remarkable stretch of longitude — from Spain's Atlantic coast to Poland's eastern border — so solar noon in Madrid arrives nearly two hours later than in Warsaw.
KST — Korea Standard Time
Seoul, Busan, Incheon. Standing at UTC+9:00 as written, and the region does not change its clocks, so that offset holds all year.
South Korea has used daylight saving only twice, most recently for the 1988 Seoul Olympics, and has kept a fixed offset since.
What This Means in Practice
This gap is not fixed
CET changes its clocks and KST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on CET
Cities on KST
Frequently Asked Questions
What is the time difference between CET and KST?
KST is 7 hours ahead of CET. That is the live figure. Taken strictly as written, the gap between CET and KST is 8 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM CET in KST?
9:00 AM CET is 4:00 PM KST.
What are the best hours to schedule a call between CET and KST?
Between 9:00 AM and 10:00 AM CET, which is 4:00 PM to 5:00 PM KST. Both sides are inside normal business hours through that window.
Does the difference between CET and KST change during the year?
Yes. CET observes daylight saving and KST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.
Does CET always mean Central European Time?
Most of continental Europe moves to CEST (UTC+2) for the summer.