Porto to Kashiwazaki time converter

Kashiwazaki is 8 hours ahead of Porto. When it is 9:00 AM in Porto, it is 5:00 PM in Kashiwazaki.

Porto WEST

Wednesday, October 21, 2026

Kashiwazaki JST

Thursday, October 22, 2026

Porto
Portugal
Wed, Oct 21
WESTUTC+1
Kashiwazaki
Japan
Thu, Oct 22
JSTUTC+9+8h
Finding your time zone…
Shared working hours (9:00–18:00)

Porto to Kashiwazaki conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Porto and Kashiwazaki 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

Porto and Kashiwazaki are 10,668 km (6,629 miles) apart in a straight line.

More conversions

Kashiwazaki to PortoPorto to New YorkPorto to LondonPorto to Los AngelesPorto to ChicagoPorto to TorontoPorto to São PauloPorto to ParisPorto to BerlinPorto to MoscowPorto to DubaiPorto to New DelhiPorto to Bangkok
New York to KashiwazakiLondon to KashiwazakiLos Angeles to KashiwazakiChicago to KashiwazakiToronto to KashiwazakiSão Paulo to KashiwazakiParis to KashiwazakiBerlin to KashiwazakiMoscow to KashiwazakiDubai to KashiwazakiNew Delhi to KashiwazakiBangkok to Kashiwazaki

Questions and answers

What is the time difference between Porto and Kashiwazaki?

Kashiwazaki is 8 hours ahead of Porto.

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

When it is 9:00 AM in Porto, it is 5:00 PM in Kashiwazaki.

When is the best time to call Kashiwazaki from Porto?

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

Does the time difference between Porto and Kashiwazaki change?

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