Buenos Aires: Argentina Standard Time
Buenos Aires, Argentina uses the America/Argentina/Buenos_Aires time zone (UTC−3).
No clock change is scheduled; the offset stays the same all year.
Buenos Aires to Chicago time
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Buenos Aires to Chicago conversion table
For Tuesday, November 3, 2026. Rows where both places are inside 9 AM–5 PM are highlighted.
| Buenos Aires | Chicago |
|---|---|
| 12:00 AM | 9:00 PM (previous day) |
| 1:00 AM | 10:00 PM (previous day) |
| 2:00 AM | 11:00 PM (previous day) |
| 3:00 AM | 12:00 AM |
| 4:00 AM | 1:00 AM |
| 5:00 AM | 2:00 AM |
| 6:00 AM | 3:00 AM |
| 7:00 AM | 4:00 AM |
| 8:00 AM | 5:00 AM |
| 9:00 AM | 6:00 AM |
| 10:00 AM | 7:00 AM |
| 11:00 AM | 8:00 AM |
| 12:00 PM | 9:00 AM |
| 1:00 PM | 10:00 AM |
| 2:00 PM | 11:00 AM |
| 3:00 PM | 12:00 PM |
| 4:00 PM | 1:00 PM |
| 5:00 PM | 2:00 PM |
| 6:00 PM | 3:00 PM |
| 7:00 PM | 4:00 PM |
| 8:00 PM | 5:00 PM |
| 9:00 PM | 6:00 PM |
| 10:00 PM | 7:00 PM |
| 11:00 PM | 8:00 PM |
About these time zones
Chicago: Central Standard Time
Chicago, Illinois uses the America/Chicago time zone (CST).
Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−6 → UTC−5).
Questions about Buenos Aires and Chicago time
What is the time difference between Buenos Aires and Chicago?
The current difference is shown at the top of this page. Buenos Aires uses Argentina Standard Time (UTC−3, UTC−3) all year; Chicago uses Central Standard Time (CST, UTC−6) as standard time and Central Daylight Time (CDT, UTC−5) during daylight saving time. The difference can change if only one side observes daylight saving time or if their clocks change on different dates. Choose your meeting date in the converter to check the applicable offset.
When it is 9:00 AM in Buenos Aires, what time is it in Chicago?
On Tuesday, November 3, 2026, 9:00 AM in Buenos Aires was 6:00 AM in Chicago. The conversion table above shows today’s values.
Do the clocks change in Buenos Aires or Chicago?
Buenos Aires does not change its clocks. Chicago: Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−6 → UTC−5).
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