Itoshima to Porto time converter

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

Itoshima JST

Monday, October 19, 2026

Porto WEST

Monday, October 19, 2026

Mon, Oct 19
JSTUTC+9
Portugal
Mon, Oct 19
WESTUTC+1-8h
Finding your time zone…

2:36 PM in Itoshima, Monday, October 19, 2026

Shared working hours (9:00–18:00)

Itoshima to Porto conversion table

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

ItoshimaPorto
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 Itoshima (9:00 AM – 10:00 AM in Porto).

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Mar 28, 2027: -9h
  • Mar 28, 2027 – Oct 19, 2027: -8h

Distance

Itoshima and Porto are 10,701 km (6,649 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Itoshima and Porto?

Porto is 8 hours behind Itoshima.

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

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

When is the best time to call Porto from Itoshima?

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

Does the time difference between Itoshima 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.