Buenos Aires to San Luis time converter

San Luis is 1 hour behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 8:00 AM in San Luis.

Buenos Aires ART

Wednesday, October 21, 2026

San Luis CDT

Wednesday, October 21, 2026

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

2:38 PM in Buenos Aires, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Buenos Aires to San Luis conversion table

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

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

Best time to call or meet

Both sides are at work from 10:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 5:00 PM in San Luis).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires and San Luis switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -1h
  • Nov 1, 2026 – Mar 14, 2027: -2h
  • Mar 14, 2027 – Oct 21, 2027: -1h

Distance

Buenos Aires and San Luis are 6,367 km (3,956 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Buenos Aires and San Luis?

San Luis is 1 hour behind Buenos Aires.

What time is it in San Luis when it is 9 AM in Buenos Aires?

When it is 9:00 AM in Buenos Aires, it is 8:00 AM in San Luis.

When is the best time to call San Luis from Buenos Aires?

Both sides are at work from 10:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 5:00 PM in San Luis).

Does the time difference between Buenos Aires and San Luis change?

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