San Antonio to Seoul time converter

Seoul is 12 hours ahead of San Antonio. When it is 9:00 AM in San Antonio, it is 9:00 PM in Seoul.

San Antonio CLST

Wednesday, October 21, 2026

Seoul KST

Thursday, October 22, 2026

San Antonio
Chile
Wed, Oct 21
CLSTUTC-3
Seoul
South Korea
Thu, Oct 22
KSTUTC+9+12h
Finding your time zone…
Shared working hours (9:00–18:00)

San Antonio to Seoul conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in San Antonio (9:00 PM – 10:00 PM in Seoul): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 21, 2026 – Apr 3, 2027: +12h
  • Apr 3, 2027 – Sep 5, 2027: +13h
  • Sep 5, 2027 – Oct 21, 2027: +12h

Distance

San Antonio and Seoul are 18,281 km (11,359 miles) apart in a straight line.

More conversions

Seoul to San AntonioSan Antonio to New YorkSan Antonio to LondonSan Antonio to Los AngelesSan Antonio to ChicagoSan Antonio to TorontoSan Antonio to São PauloSan Antonio to ParisSan Antonio to BerlinSan Antonio to MoscowSan Antonio to DubaiSan Antonio to New DelhiSan Antonio 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 San Antonio and Seoul?

Seoul is 12 hours ahead of San Antonio.

What time is it in Seoul when it is 9 AM in San Antonio?

When it is 9:00 AM in San Antonio, it is 9:00 PM in Seoul.

When is the best time to call Seoul from San Antonio?

Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in San Antonio (9:00 PM – 10:00 PM in Seoul): working hours on one side, early or late on the other.

Does the time difference between San Antonio 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.