Compare the current local time in Chicago and Buenos Aires side by side, with the live time difference, a quick conversion table, and the overlapping working hours for scheduling calls.
Current difference calculated live in your browser.
Current 24-hour conversion is calculated live in your browser.
Current business-hours overlap is calculated live in your browser.
Planning a call between Chicago and Buenos Aires
The current difference is calculated live above. The clocks above are live and adjust automatically for daylight saving time, so the difference is always current. For a full visual overlap across more cities, use the meeting planner, or view each city on its own page: time in Chicago and time in Buenos Aires.
Why the time difference can change
Chicago uses America/Chicago and Buenos Aires uses America/Argentina/Buenos_Aires. Current and seasonal time-zone differences are calculated live in your browser.
Next difference changeCalculated live for the next 12 months.
Temporary difference windowCalculated live for the next 12 months.
Business-hours overlap
Typical working hours are 09:00–17:00 in each city. Green marks the hours when both cities are at work.
Current working-hours overlap is calculated live in your browser.
Frequently asked questions
What is the time difference between Chicago and Buenos Aires?
The current difference is calculated live in your browser and adjusts automatically for daylight saving time.
What time zones do Chicago and Buenos Aires use?
Chicago uses the America/Chicago time zone and Buenos Aires uses the America/Argentina/Buenos_Aires time zone.
When is the best time to schedule a call between Chicago and Buenos Aires?
The current working-hours overlap is calculated live in your browser. Use the meeting planner to compare more cities.