Buenos Aires to Round Rock time converter

Round Rock is 2 hours behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 7:00 AM in Round Rock.

Buenos Aires ART

Tuesday, October 20, 2026

Round Rock CDT

Tuesday, October 20, 2026

Argentina
Tue, Oct 20
ARTUTC-3
Texas, United States
Tue, Oct 20
CDTUTC-5-2h
Finding your time zone…

10:37 PM in Buenos Aires, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

Buenos Aires to Round Rock conversion table

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

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

Best time to call or meet

Both sides are at work from 11:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 4:00 PM in Round Rock).

Daylight saving time and the difference

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

  • Oct 20, 2026 – Nov 1, 2026: -2h
  • Nov 1, 2026 – Mar 14, 2027: -3h
  • Mar 14, 2027 – Oct 20, 2027: -2h

Distance

Buenos Aires and Round Rock are 8,330 km (5,176 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Buenos Aires and Round Rock?

Round Rock is 2 hours behind Buenos Aires.

What time is it in Round Rock when it is 9 AM in Buenos Aires?

When it is 9:00 AM in Buenos Aires, it is 7:00 AM in Round Rock.

When is the best time to call Round Rock from Buenos Aires?

Both sides are at work from 11:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 4:00 PM in Round Rock).

Does the time difference between Buenos Aires and Round Rock change?

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