Rosemont to Seoul time converter

Seoul is 16 hours ahead of Rosemont. When it is 9:00 AM in Rosemont, it is 1:00 AM (Wed, Oct 21) in Seoul.

Rosemont PDT

Tuesday, October 20, 2026

Seoul KST

Wednesday, October 21, 2026

Rosemont
California, United States
Tue, Oct 20
PDTUTC-7
Seoul
South Korea
Wed, Oct 21
KSTUTC+9+16h
Finding your time zone…
Shared working hours (9:00–18:00)

Rosemont to Seoul conversion table

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

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

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in Rosemont (9:00 AM – 10:00 AM in Seoul).

Daylight saving time and the difference

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

  • Oct 20, 2026 – Nov 1, 2026: +16h
  • Nov 1, 2026 – Mar 14, 2027: +17h
  • Mar 14, 2027 – Oct 20, 2027: +16h

Distance

Rosemont and Seoul are 9,041 km (5,618 miles) apart in a straight line.

More conversions

Seoul to RosemontRosemont to New YorkRosemont to LondonRosemont to Los AngelesRosemont to ChicagoRosemont to TorontoRosemont to São PauloRosemont to ParisRosemont to BerlinRosemont to MoscowRosemont to DubaiRosemont to New DelhiRosemont 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 Rosemont and Seoul?

Seoul is 16 hours ahead of Rosemont.

What time is it in Seoul when it is 9 AM in Rosemont?

When it is 9:00 AM in Rosemont, it is 1:00 AM (Wed, Oct 21) in Seoul.

When is the best time to call Seoul from Rosemont?

Both sides are at work from 5:00 PM – 6:00 PM in Rosemont (9:00 AM – 10:00 AM in Seoul).

Does the time difference between Rosemont 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.