Seoul to Centennial time converter

Centennial is 15 hours behind Seoul. When it is 9:00 AM in Seoul, it is 6:00 PM (Sun, Oct 18) in Centennial.

Seoul KST

Monday, October 19, 2026

Centennial MDT

Sunday, October 18, 2026

Seoul
South Korea
Mon, Oct 19
KSTUTC+9
Centennial
Colorado, United States
Sun, Oct 18
MDTUTC-6-15h
Finding your time zone…
Shared working hours (9:00–18:00)

Seoul to Centennial conversion table

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

SeoulCentennial
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 Centennial): 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 Centennial switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -15h
  • Nov 1, 2026 – Mar 14, 2027: -16h
  • Mar 14, 2027 – Oct 19, 2027: -15h

Distance

Seoul and Centennial are 9,937 km (6,175 miles) apart in a straight line.

More conversions

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New York to CentennialLondon to CentennialLos Angeles to CentennialChicago to CentennialToronto to CentennialSão Paulo to CentennialParis to CentennialBerlin to CentennialMoscow to CentennialDubai to CentennialNew Delhi to CentennialBangkok to Centennial

Questions and answers

What is the time difference between Seoul and Centennial?

Centennial is 15 hours behind Seoul.

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

When it is 9:00 AM in Seoul, it is 6:00 PM (Sun, Oct 18) in Centennial.

When is the best time to call Centennial 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 Centennial): working hours on one side, early or late on the other.

Does the time difference between Seoul and Centennial change?

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