Chicago to Ulsan time converter

Ulsan is 14 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 11:00 PM in Ulsan.

Chicago CDT

Saturday, October 17, 2026

Ulsan KST

Saturday, October 17, 2026

Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5
Ulsan
South Korea
Sat, Oct 17
KSTUTC+9+14h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Ulsan conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 5:00 PM – 6:00 PM in Chicago (7:00 AM – 8:00 AM in Ulsan): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Chicago and Ulsan switch clocks on different dates:

  • Oct 17, 2026 – Nov 1, 2026: +14h
  • Nov 1, 2026 – Mar 14, 2027: +15h
  • Mar 14, 2027 – Oct 17, 2027: +14h

Distance

Chicago and Ulsan are 10,623 km (6,601 miles) apart in a straight line.

More conversions

Ulsan to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to UlsanLondon to UlsanLos Angeles to UlsanToronto to UlsanSão Paulo to UlsanParis to UlsanBerlin to UlsanMoscow to UlsanDubai to UlsanNew Delhi to UlsanBangkok to UlsanSingapore to Ulsan

Questions and answers

What is the time difference between Chicago and Ulsan?

Ulsan is 14 hours ahead of Chicago.

What time is it in Ulsan when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 11:00 PM in Ulsan.

When is the best time to call Ulsan from Chicago?

Working hours don't overlap fully. The closest fit is 5:00 PM – 6:00 PM in Chicago (7:00 AM – 8:00 AM in Ulsan): working hours on one side, early or late on the other.

Does the time difference between Chicago and Ulsan change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.