Chicago ↔ Buenos Aires Time Zone Comparison
Day starts 2 hours later in Chicago
Chicago ↔ Buenos Aires
6h of business hours overlap daily (09:00–17:00)· Showing core hours (08:00–18:00)
Chicago
Buenos Aires
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Quick time conversions: Chicago → Buenos Aires
Common reference points to help you plan across the time difference.
Setting a 10:00 AM alarm in Chicago? That's 12:00 PM for Buenos Aires.
Is 11:00 AM a good time to call Buenos Aires from Chicago?—1:00 PM
5:00 PMin Chicago→7:00 PMin Buenos Aires
For every 1:00 PM in Chicago, it's simultaneously 3:00 PM in Buenos Aires.
7:00 AMin Chicago→9:00 AMin Buenos Aires
Frequently Asked Questions
What is the current offset between Chicago and Buenos Aires?
Currently Chicago (America/Chicago) and Buenos Aires (America/Argentina/Buenos_Aires) differ by 2 hours.
When can I schedule a call that works in both Chicago and Buenos Aires?
You have 6 hours of mutual business hours. 09:00 Chicago / 11:00 Buenos Aires is typically the sweet spot.
Do I need to worry about DST when scheduling between Chicago and Buenos Aires?
Both Chicago and Buenos Aires are in a stable DST period. No adjustments needed for meetings scheduled in the next 7 days.
When Chicago reaches noon, what time is it in Buenos Aires?
12:00 PM in Chicago is 2:00 PM in Buenos Aires at the same moment.
What tools help schedule across Chicago and Buenos Aires?
Use the interactive slider above. Drag it to any Chicago hour and all locations update instantly. Or type "3pm" / "15:00" in the search bar.
What public holidays should I keep in mind when scheduling between Chicago and Buenos Aires?
Chicago observes Labour Day on September 7. Keep this in mind when coordinating between Chicago and Buenos Aires.
What time zones do Chicago and Buenos Aires use?
Chicago is in the America/Chicago timezone. Buenos Aires is in America/Argentina/Buenos_Aires. The difference is 2 hours.
9 AM Chicago time converts to what in Buenos Aires?
9 AM in Chicago → 11:00 AM in Buenos Aires. That's within standard working hours in Buenos Aires.
End of day in Chicago — what time is that for someone in Buenos Aires?
When the workday ends at 5 PM in Chicago, Buenos Aires reads 7:00 PM. Your Buenos Aires contact has likely finished for the day — expect a reply next morning.
How are the UTC offsets of Chicago and Buenos Aires calculated?
Chicago and Buenos Aires sit in America/Chicago and America/Argentina/Buenos_Aires respectively. The arithmetic difference between their UTC offsets equals 2 hours.