Tokyo to Osan time converter

Tokyo and Osan are on the same time. When it is 9:00 AM in Tokyo, it is 9:00 AM in Osan.

Tokyo JST

Monday, October 19, 2026

Osan KST

Monday, October 19, 2026

Tokyo
Japan
Mon, Oct 19
JSTUTC+9
Osan
South Korea
Mon, Oct 19
KSTUTC+9±0
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Osan conversion table

Every hour of today in Tokyo and the matching time in Osan. Light rows are typical working hours (9:00–18:00).

TokyoOsan
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Best time to call or meet

Both sides are at work from 9:00 AM – 6:00 PM in Tokyo (9:00 AM – 6:00 PM in Osan).

Daylight saving time and the difference

The difference stays 0 hours all year.

Distance

Tokyo and Osan are 1,140 km (708 miles) apart in a straight line.

More conversions

Osan to TokyoTokyo to New YorkTokyo to LondonTokyo to Los AngelesTokyo to ChicagoTokyo to TorontoTokyo to São PauloTokyo to ParisTokyo to BerlinTokyo to MoscowTokyo to DubaiTokyo to New DelhiTokyo to Bangkok
New York to OsanLondon to OsanLos Angeles to OsanChicago to OsanToronto to OsanSão Paulo to OsanParis to OsanBerlin to OsanMoscow to OsanDubai to OsanNew Delhi to OsanBangkok to Osan

Questions and answers

What is the time difference between Tokyo and Osan?

Tokyo and Osan are on the same time.

What time is it in Osan when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 9:00 AM in Osan.

When is the best time to call Osan from Tokyo?

Both sides are at work from 9:00 AM – 6:00 PM in Tokyo (9:00 AM – 6:00 PM in Osan).

Does the time difference between Tokyo and Osan change?

No. The difference stays 0 hours all year.