Mexico City is 3 hours behind Buenos Aires.

Frequently asked

Quick answers about converting between Mexico City and Buenos Aires. Can't find what you need? Email [email protected].

What is the time difference between Mexico City and Buenos Aires?

Mexico City is 3 hours behind Buenos Aires right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.

When it's 9am in Mexico City, what time is it in Buenos Aires?

9am in Mexico City is 12pm in Buenos Aires. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.

What's the best time for a call between Mexico City and Buenos Aires?

9am–2pm in Mexico City lines up with 12pm–5pm in Buenos Aires — both sides are inside a 9-to-5 working day.

Does this account for daylight saving time?

Yes. We track every clock change in both places, so the abbreviations you see — CST and -03:00 — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.

Why is the date sometimes different on each side?

When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.