Seoul to Harpenden time converter

Harpenden is 8 hours behind Seoul. When it is 9:00 AM in Seoul, it is 1:00 AM in Harpenden.

Seoul KST

Thursday, October 22, 2026

Harpenden BST

Wednesday, October 21, 2026

Seoul
South Korea
Thu, Oct 22
KSTUTC+9
Harpenden
United Kingdom
Wed, Oct 21
BSTUTC+1-8h
Finding your time zone…
Shared working hours (9:00–18:00)

Seoul to Harpenden conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 22, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Mar 28, 2027: -9h
  • Mar 28, 2027 – Oct 22, 2027: -8h

Distance

Seoul and Harpenden are 8,841 km (5,494 miles) apart in a straight line.

More conversions

Harpenden 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 HarpendenLondon to HarpendenLos Angeles to HarpendenChicago to HarpendenToronto to HarpendenSão Paulo to HarpendenParis to HarpendenBerlin to HarpendenMoscow to HarpendenDubai to HarpendenNew Delhi to HarpendenBangkok to Harpenden

Questions and answers

What is the time difference between Seoul and Harpenden?

Harpenden is 8 hours behind Seoul.

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

When it is 9:00 AM in Seoul, it is 1:00 AM in Harpenden.

When is the best time to call Harpenden from Seoul?

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

Does the time difference between Seoul and Harpenden change?

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