Arlington Heights to Seoul time converter

Seoul is 14 hours ahead of Arlington Heights. When it is 9:00 AM in Arlington Heights, it is 11:00 PM in Seoul.

Arlington Heights CDT

Wednesday, October 21, 2026

Seoul KST

Wednesday, October 21, 2026

Arlington Heights
Illinois, United States
Wed, Oct 21
CDTUTC-5
Seoul
South Korea
Wed, Oct 21
KSTUTC+9+14h
Finding your time zone…
Shared working hours (9:00–18:00)

Arlington Heights to Seoul conversion table

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

Arlington HeightsSeoul
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 Arlington Heights (7:00 AM – 8:00 AM in Seoul): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Arlington Heights and Seoul switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: +14h
  • Nov 1, 2026 – Mar 14, 2027: +15h
  • Mar 14, 2027 – Oct 21, 2027: +14h

Distance

Arlington Heights and Seoul are 10,476 km (6,509 miles) apart in a straight line.

More conversions

Seoul to Arlington HeightsArlington Heights to New YorkArlington Heights to LondonArlington Heights to Los AngelesArlington Heights to ChicagoArlington Heights to TorontoArlington Heights to São PauloArlington Heights to ParisArlington Heights to BerlinArlington Heights to MoscowArlington Heights to DubaiArlington Heights to New DelhiArlington Heights to Bangkok
New York to SeoulLondon to SeoulLos Angeles to SeoulChicago to SeoulToronto to SeoulSão Paulo to SeoulParis to SeoulBerlin to SeoulMoscow to SeoulDubai to SeoulNew Delhi to SeoulBangkok to Seoul

Questions and answers

What is the time difference between Arlington Heights and Seoul?

Seoul is 14 hours ahead of Arlington Heights.

What time is it in Seoul when it is 9 AM in Arlington Heights?

When it is 9:00 AM in Arlington Heights, it is 11:00 PM in Seoul.

When is the best time to call Seoul from Arlington Heights?

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

Does the time difference between Arlington Heights and Seoul change?

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