San Luis to Buenos Aires time converter

Buenos Aires is 1 hour ahead of San Luis. When it is 9:00 AM in San Luis, it is 10:00 AM in Buenos Aires.

San Luis CDT

Wednesday, October 21, 2026

Buenos Aires ART

Wednesday, October 21, 2026

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

6:55 AM in San Luis, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

San Luis to Buenos Aires conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because San Luis and Buenos Aires 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

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

More conversions

Questions and answers

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

Buenos Aires is 1 hour ahead of San Luis.

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

When it is 9:00 AM in San Luis, it is 10:00 AM in Buenos Aires.

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

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

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

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