Yokosuka to Porto time converter

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

Yokosuka JST

Wednesday, October 21, 2026

Porto WEST

Wednesday, October 21, 2026

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

Yokosuka to Porto conversion table

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

YokosukaPorto
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 Yokosuka (9:00 AM – 10:00 AM in Porto).

Daylight saving time and the difference

The difference changes during the year because Yokosuka 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

Yokosuka and Porto are 10,920 km (6,785 miles) apart in a straight line.

More conversions

Porto to YokosukaYokosuka to New YorkYokosuka to LondonYokosuka to Los AngelesYokosuka to ChicagoYokosuka to TorontoYokosuka to São PauloYokosuka to ParisYokosuka to BerlinYokosuka to MoscowYokosuka to DubaiYokosuka to New DelhiYokosuka 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 Yokosuka and Porto?

Porto is 8 hours behind Yokosuka.

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

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

When is the best time to call Porto from Yokosuka?

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

Does the time difference between Yokosuka 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.