Seoul to Koshigaya time converter
Seoul and Koshigaya are on the same time. When it is 9:00 AM in Seoul, it is 9:00 AM in Koshigaya.
10:43 AM in Seoul, Wednesday, October 21, 2026
Shared working hours (9:00–18:00)
Seoul to Koshigaya conversion table
Every hour of today in Seoul and the matching time in Koshigaya. Light rows are typical working hours (9:00–18:00).
| Seoul | Koshigaya |
|---|---|
| 12:00 AM | 12:00 AM |
| 1:00 AM | 1:00 AM |
| 2:00 AM | 2:00 AM |
| 3:00 AM | 3:00 AM |
| 4:00 AM | 4:00 AM |
| 5:00 AM | 5:00 AM |
| 6:00 AM | 6:00 AM |
| 7:00 AM | 7:00 AM |
| 8:00 AM | 8:00 AM |
| 9:00 AM | 9:00 AM |
| 10:00 AM | 10:00 AM |
| 11:00 AM | 11:00 AM |
| 12:00 PM | 12:00 PM |
| 1:00 PM | 1:00 PM |
| 2:00 PM | 2:00 PM |
| 3:00 PM | 3:00 PM |
| 4:00 PM | 4:00 PM |
| 5:00 PM | 5:00 PM |
| 6:00 PM | 6:00 PM |
| 7:00 PM | 7:00 PM |
| 8:00 PM | 8:00 PM |
| 9:00 PM | 9:00 PM |
| 10:00 PM | 10:00 PM |
| 11:00 PM | 11:00 PM |
Best time to call or meet
Both sides are at work from 9:00 AM – 6:00 PM in Seoul (9:00 AM – 6:00 PM in Koshigaya).
Daylight saving time and the difference
The difference stays 0 hours all year.
Distance
Seoul and Koshigaya are 1,156 km (718 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Seoul and Koshigaya?
Seoul and Koshigaya are on the same time.
What time is it in Koshigaya when it is 9 AM in Seoul?
When it is 9:00 AM in Seoul, it is 9:00 AM in Koshigaya.
When is the best time to call Koshigaya from Seoul?
Both sides are at work from 9:00 AM – 6:00 PM in Seoul (9:00 AM – 6:00 PM in Koshigaya).
Does the time difference between Seoul and Koshigaya change?
No. The difference stays 0 hours all year.