Seoul to Columbine time converter

Columbine is 15 hours behind Seoul. When it is 9:00 AM in Seoul, it is 6:00 PM (Mon, Oct 19) in Columbine.

Seoul KST

Tuesday, October 20, 2026

Columbine MDT

Tuesday, October 20, 2026

Seoul
South Korea
Tue, Oct 20
KSTUTC+9
Columbine
Colorado, United States
Tue, Oct 20
MDTUTC-6-15h
Finding your time zone…
Shared working hours (9:00–18:00)

Seoul to Columbine conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Seoul (4:00 PM – 6:00 PM in Columbine): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 20, 2026 – Nov 1, 2026: -15h
  • Nov 1, 2026 – Mar 14, 2027: -16h
  • Mar 14, 2027 – Oct 20, 2027: -15h

Distance

Seoul and Columbine are 9,926 km (6,168 miles) apart in a straight line.

More conversions

Columbine to SeoulSeoul to New YorkSeoul to LondonSeoul to Los AngelesSeoul to ChicagoSeoul to TorontoSeoul to São PauloSeoul to ParisSeoul to BerlinSeoul to MoscowSeoul to DubaiSeoul to New DelhiSeoul to Bangkok
New York to ColumbineLondon to ColumbineLos Angeles to ColumbineChicago to ColumbineToronto to ColumbineSão Paulo to ColumbineParis to ColumbineBerlin to ColumbineMoscow to ColumbineDubai to ColumbineNew Delhi to ColumbineBangkok to Columbine

Questions and answers

What is the time difference between Seoul and Columbine?

Columbine is 15 hours behind Seoul.

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

When it is 9:00 AM in Seoul, it is 6:00 PM (Mon, Oct 19) in Columbine.

When is the best time to call Columbine from Seoul?

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Seoul (4:00 PM – 6:00 PM in Columbine): working hours on one side, early or late on the other.

Does the time difference between Seoul and Columbine change?

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