Seoul to União time converter

União is 12 hours behind Seoul. When it is 9:00 AM in Seoul, it is 9:00 PM (Tue, Oct 20) in União.

Seoul KST

Wednesday, October 21, 2026

União BRT

Tuesday, October 20, 2026

Seoul
South Korea
Wed, Oct 21
KSTUTC+9
União
Piauí, Brazil
Tue, Oct 20
BRTUTC-3-12h
Finding your time zone…
Shared working hours (9:00–18:00)

Seoul to União conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference stays 12 hours all year.

Distance

Seoul and União are 16,205 km (10,069 miles) apart in a straight line.

More conversions

União to SeoulSeoul to New YorkSeoul to LondonSeoul to Los AngelesSeoul to ChicagoSeoul to TorontoSeoul to São PauloSeoul to ParisSeoul to BerlinSeoul to MoscowSeoul to DubaiSeoul to New DelhiSeoul to Bangkok
New York to UniãoLondon to UniãoLos Angeles to UniãoChicago to UniãoToronto to UniãoSão Paulo to UniãoParis to UniãoBerlin to UniãoMoscow to UniãoDubai to UniãoNew Delhi to UniãoBangkok to União

Questions and answers

What is the time difference between Seoul and União?

União is 12 hours behind Seoul.

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

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

When is the best time to call União from Seoul?

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

Does the time difference between Seoul and União change?

No. The difference stays 12 hours all year.