Hyesan to Porto time converter

Porto is 8 hours behind Hyesan. When it is 9:00 AM in Hyesan, it is 1:00 AM in Porto.

Hyesan KST

Wednesday, October 21, 2026

Porto WEST

Tuesday, October 20, 2026

Hyesan
North Korea
Wed, Oct 21
KSTUTC+9
Porto
Portugal
Tue, Oct 20
WESTUTC+1-8h
Finding your time zone…
Shared working hours (9:00–18:00)

Hyesan to Porto conversion table

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

HyesanPorto
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 Hyesan (9:00 AM – 10:00 AM in Porto).

Daylight saving time and the difference

The difference changes during the year because Hyesan and Porto switch clocks on different dates:

  • Oct 21, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Mar 28, 2027: -9h
  • Mar 28, 2027 – Oct 21, 2027: -8h

Distance

Hyesan and Porto are 9,858 km (6,125 miles) apart in a straight line.

More conversions

Porto to HyesanHyesan to New YorkHyesan to LondonHyesan to Los AngelesHyesan to ChicagoHyesan to TorontoHyesan to São PauloHyesan to ParisHyesan to BerlinHyesan to MoscowHyesan to DubaiHyesan to New DelhiHyesan to Bangkok
New York to PortoLondon to PortoLos Angeles to PortoChicago to PortoToronto to PortoSão Paulo to PortoParis to PortoBerlin to PortoMoscow to PortoDubai to PortoNew Delhi to PortoBangkok to Porto

Questions and answers

What is the time difference between Hyesan and Porto?

Porto is 8 hours behind Hyesan.

What time is it in Porto when it is 9 AM in Hyesan?

When it is 9:00 AM in Hyesan, it is 1:00 AM in Porto.

When is the best time to call Porto from Hyesan?

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

Does the time difference between Hyesan and Porto change?

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