Time Difference Between Buenos Aires and Chicago
Chicago is 2 hours behind Buenos Aires.
Chicago is 2 hours behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 7:00 AM in Chicago.
What time is it in Chicago?
For a given hour in Buenos Aires, here’s the matching local time in Chicago. Highlighted rows fall within Chicago’s working hours (9 AM–5 PM) — the easiest times to reach someone.
| Buenos Aires | Chicago |
|---|---|
| 12:00 AM | 10:00 PM the previous day |
| 3:00 AM | 1:00 AM |
| 6:00 AM | 4:00 AM |
| 9:00 AM | 7:00 AM |
| 12:00 PM | 10:00 AMworking hours |
| 3:00 PM | 1:00 PMworking hours |
| 6:00 PM | 4:00 PMworking hours |
| 9:00 PM | 7:00 PM |
How far apart are Buenos Aires and Chicago?
Chicago (United States) runs 2 hours behind Buenos Aires (Argentina). In practical terms, the working day in Chicago starts while Buenos Aires is already well into the afternoon or evening, which is what makes scheduling between the two take a little planning.
Best time to schedule a call or meeting
The comfortable window — when both cities are inside normal 9-to-5 hours — runs from about 11:00 AM to 5:00 PM in Buenos Aires time, roughly 6 hours. Schedule calls inside that band and neither side is working unsocial hours.
A note on daylight saving
Chicago observes daylight saving but Buenos Aires does not, so the gap between them changes by an hour for part of the year. The 2 hours shown here is the current offset; expect it to shift around the daylight-saving changeovers (typically late March and late October in the Northern Hemisphere).
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Frequently Asked Questions
Chicago is 2 hours behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 7:00 AM in Chicago.