Mount Prospect to Buenos Aires time converter

Buenos Aires is 2 hours ahead of Mount Prospect. When it is 9:00 AM in Mount Prospect, it is 11:00 AM in Buenos Aires.

Mount Prospect CDT

Monday, October 19, 2026

Buenos Aires ART

Monday, October 19, 2026

Illinois, United States
Mon, Oct 19
CDTUTC-5
Argentina
Mon, Oct 19
ARTUTC-3+2h
Finding your time zone…

10:53 AM in Mount Prospect, Monday, October 19, 2026

Shared working hours (9:00–18:00)

Mount Prospect to Buenos Aires conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 19, 2026 – Nov 1, 2026: +2h
  • Nov 1, 2026 – Mar 14, 2027: +3h
  • Mar 14, 2027 – Oct 19, 2027: +2h

Distance

Mount Prospect and Buenos Aires are 9,043 km (5,619 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Mount Prospect and Buenos Aires?

Buenos Aires is 2 hours ahead of Mount Prospect.

What time is it in Buenos Aires when it is 9 AM in Mount Prospect?

When it is 9:00 AM in Mount Prospect, it is 11:00 AM in Buenos Aires.

When is the best time to call Buenos Aires from Mount Prospect?

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

Does the time difference between Mount Prospect 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.