Upland to Seoul time converter

Seoul is 16 hours ahead of Upland. When it is 9:00 AM in Upland, it is 1:00 AM (Tue, Oct 20) in Seoul.

Upland PDT

Monday, October 19, 2026

Seoul KST

Tuesday, October 20, 2026

Upland
California, United States
Mon, Oct 19
PDTUTC-7
Seoul
South Korea
Tue, Oct 20
KSTUTC+9+16h
Finding your time zone…
Shared working hours (9:00–18:00)

Upland to Seoul conversion table

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

UplandSeoul
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 Upland (9:00 AM – 10:00 AM in Seoul).

Daylight saving time and the difference

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

  • Oct 19, 2026 – Nov 1, 2026: +16h
  • Nov 1, 2026 – Mar 14, 2027: +17h
  • Mar 14, 2027 – Oct 19, 2027: +16h

Distance

Upland and Seoul are 9,622 km (5,979 miles) apart in a straight line.

More conversions

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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 Upland and Seoul?

Seoul is 16 hours ahead of Upland.

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

When it is 9:00 AM in Upland, it is 1:00 AM (Tue, Oct 20) in Seoul.

When is the best time to call Seoul from Upland?

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

Does the time difference between Upland 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.