Porto to Rio Claro time converter

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

Porto WEST

Wednesday, October 21, 2026

Rio Claro BRT

Wednesday, October 21, 2026

Porto
Portugal
Wed, Oct 21
WESTUTC+1
Rio Claro
São Paulo, Brazil
Wed, Oct 21
BRTUTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Porto to Rio Claro conversion table

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

PortoRio Claro
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 Rio Claro).

Daylight saving time and the difference

The difference changes during the year because Porto and Rio Claro 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 Rio Claro are 8,130 km (5,052 miles) apart in a straight line.

More conversions

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New York to Rio ClaroLondon to Rio ClaroLos Angeles to Rio ClaroChicago to Rio ClaroToronto to Rio ClaroSão Paulo to Rio ClaroParis to Rio ClaroBerlin to Rio ClaroMoscow to Rio ClaroDubai to Rio ClaroNew Delhi to Rio ClaroBangkok to Rio Claro

Questions and answers

What is the time difference between Porto and Rio Claro?

Rio Claro is 4 hours behind Porto.

What time is it in Rio Claro when it is 9 AM in Porto?

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

When is the best time to call Rio Claro from Porto?

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

Does the time difference between Porto and Rio Claro change?

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