Buenos Aires to Los Altos time converter

Los Altos is 4 hours behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 5:00 AM in Los Altos.

Buenos Aires ART

Wednesday, October 21, 2026

Los Altos PDT

Tuesday, October 20, 2026

Buenos Aires
Argentina
Wed, Oct 21
ARTUTC-3
Los Altos
California, United States
Tue, Oct 20
PDTUTC-7-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Buenos Aires to Los Altos conversion table

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

Buenos AiresLos 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 Buenos Aires (9:00 AM – 2:00 PM in Los Altos).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires 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

Buenos Aires and Los Altos are 10,362 km (6,439 miles) apart in a straight line.

More conversions

Los Altos to Buenos AiresBuenos Aires to New YorkBuenos Aires to LondonBuenos Aires to Los AngelesBuenos Aires to ChicagoBuenos Aires to TorontoBuenos Aires to São PauloBuenos Aires to ParisBuenos Aires to BerlinBuenos Aires to MoscowBuenos Aires to DubaiBuenos Aires to New DelhiBuenos Aires 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 Buenos Aires and Los Altos?

Los Altos is 4 hours behind Buenos Aires.

What time is it in Los Altos when it is 9 AM in Buenos Aires?

When it is 9:00 AM in Buenos Aires, it is 5:00 AM in Los Altos.

When is the best time to call Los Altos from Buenos Aires?

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

Does the time difference between Buenos Aires 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.