Riverside to Seoul time converter

Seoul is 16 hours ahead of Riverside. When it is 9:00 AM in Riverside, it is 1:00 AM (Mon, Oct 19) in Seoul.

Riverside PDT

Sunday, October 18, 2026

Seoul KST

Monday, October 19, 2026

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

Riverside to Seoul conversion table

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

RiversideSeoul
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 Riverside (9:00 AM – 10:00 AM in Seoul).

Daylight saving time and the difference

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

  • Oct 18, 2026 – Nov 1, 2026: +16h
  • Nov 1, 2026 – Mar 14, 2027: +17h
  • Mar 14, 2027 – Oct 18, 2027: +16h

Distance

Riverside and Seoul are 9,650 km (5,996 miles) apart in a straight line.

More conversions

Seoul to RiversideRiverside to New YorkRiverside to LondonRiverside to Los AngelesRiverside to ChicagoRiverside to TorontoRiverside to São PauloRiverside to ParisRiverside to BerlinRiverside to MoscowRiverside to DubaiRiverside to New DelhiRiverside 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 Riverside and Seoul?

Seoul is 16 hours ahead of Riverside.

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

When it is 9:00 AM in Riverside, it is 1:00 AM (Mon, Oct 19) in Seoul.

When is the best time to call Seoul from Riverside?

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

Does the time difference between Riverside 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.