Porto to Rivera time converter

Rivera is 4 hours behind Porto. When it is 9:00 AM in Porto, it is 5:00 AM in Rivera.

Porto WEST

Monday, October 19, 2026

Rivera UYT

Sunday, October 18, 2026

Porto
Portugal
Mon, Oct 19
WESTUTC+1
Rivera
Uruguay
Sun, Oct 18
UYTUTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Porto to Rivera conversion table

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

PortoRivera
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 Rivera).

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 19, 2027: -4h

Distance

Porto and Rivera are 9,349 km (5,809 miles) apart in a straight line.

More conversions

Rivera 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 RiveraLondon to RiveraLos Angeles to RiveraChicago to RiveraToronto to RiveraSão Paulo to RiveraParis to RiveraBerlin to RiveraMoscow to RiveraDubai to RiveraNew Delhi to RiveraBangkok to Rivera

Questions and answers

What is the time difference between Porto and Rivera?

Rivera is 4 hours behind Porto.

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

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

When is the best time to call Rivera from Porto?

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

Does the time difference between Porto and Rivera change?

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