Porto to Mar del Plata time converter

Mar del Plata is 4 hours behind Porto. When it is 9:00 AM in Porto, it is 5:00 AM in Mar del Plata.

Porto WEST

Wednesday, October 21, 2026

Mar del Plata ART

Wednesday, October 21, 2026

Portugal
Wed, Oct 21
WESTUTC+1
Argentina
Wed, Oct 21
ARTUTC-3-4h
Finding your time zone…

10:54 AM in Porto, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Porto to Mar del Plata conversion table

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

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

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in Porto (9:00 AM – 2:00 PM in Mar del Plata).

Daylight saving time and the difference

The difference changes during the year because Porto and Mar del Plata switch clocks on different dates:

  • Oct 21, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 21, 2027: -4h

Distance

Porto and Mar del Plata are 10,106 km (6,280 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Porto and Mar del Plata?

Mar del Plata is 4 hours behind Porto.

What time is it in Mar del Plata when it is 9 AM in Porto?

When it is 9:00 AM in Porto, it is 5:00 AM in Mar del Plata.

When is the best time to call Mar del Plata from Porto?

Both sides are at work from 1:00 PM – 6:00 PM in Porto (9:00 AM – 2:00 PM in Mar del Plata).

Does the time difference between Porto and Mar del Plata change?

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