Rio de Janeiro to Los Altos time converter

Los Altos is 4 hours behind Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 5:00 AM in Los Altos.

Rio de Janeiro BRT

Wednesday, October 21, 2026

Los Altos PDT

Wednesday, October 21, 2026

Rio de Janeiro
Brazil
Wed, Oct 21
BRTUTC-3
Los Altos
California, United States
Wed, Oct 21
PDTUTC-7-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Los Altos conversion table

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

Rio de JaneiroLos Altos
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 Rio de Janeiro (9:00 AM – 2:00 PM in Los Altos).

Daylight saving time and the difference

The difference changes during the year because Rio de Janeiro and Los Altos switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Oct 21, 2027: -4h

Distance

Rio de Janeiro and Los Altos are 10,619 km (6,598 miles) apart in a straight line.

More conversions

Los Altos to Rio de JaneiroRio de Janeiro to New YorkRio de Janeiro to LondonRio de Janeiro to Los AngelesRio de Janeiro to ChicagoRio de Janeiro to TorontoRio de Janeiro to São PauloRio de Janeiro to ParisRio de Janeiro to BerlinRio de Janeiro to MoscowRio de Janeiro to DubaiRio de Janeiro to New DelhiRio de Janeiro to Bangkok
New York to Los AltosLondon to Los AltosLos Angeles to Los AltosChicago to Los AltosToronto to Los AltosSão Paulo to Los AltosParis to Los AltosBerlin to Los AltosMoscow to Los AltosDubai to Los AltosNew Delhi to Los AltosBangkok to Los Altos

Questions and answers

What is the time difference between Rio de Janeiro and Los Altos?

Los Altos is 4 hours behind Rio de Janeiro.

What time is it in Los Altos when it is 9 AM in Rio de Janeiro?

When it is 9:00 AM in Rio de Janeiro, it is 5:00 AM in Los Altos.

When is the best time to call Los Altos from Rio de Janeiro?

Both sides are at work from 1:00 PM – 6:00 PM in Rio de Janeiro (9:00 AM – 2:00 PM in Los Altos).

Does the time difference between Rio de Janeiro and Los Altos change?

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