Seoul to Roy time converter

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

Seoul KST

Monday, October 19, 2026

Roy MDT

Sunday, October 18, 2026

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

Seoul to Roy conversion table

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

SeoulRoy
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 Roy): 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 Roy 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 Roy are 9,408 km (5,846 miles) apart in a straight line.

More conversions

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New York to RoyLondon to RoyLos Angeles to RoyChicago to RoyToronto to RoySão Paulo to RoyParis to RoyBerlin to RoyMoscow to RoyDubai to RoyNew Delhi to RoyBangkok to Roy

Questions and answers

What is the time difference between Seoul and Roy?

Roy is 15 hours behind Seoul.

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

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

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

Does the time difference between Seoul and Roy change?

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