The short answer

3pm in Mexico City is 6pm in Buenos Aires.

Mexico City is 3 hours behind Buenos Aires. That's already evening in Buenos Aires, after the typical working day ends.

Mexico City
3pm
Buenos Aires
6pm
Right now
1:02amCST · UTC-06:00 · Mon, Jun 22
4:02am-03:00 · UTC-03:00 · Mon, Jun 22
Read across to convert
Mexico City
CST · UTC-06:00
1:02am ☾
Buenos Aires
-03:00 · UTC-03:00
4:02am ☾
Pinned3pmMexico City=6pmBuenos Aires
12amMon
3am
NOW
1am
4am
2am
5am
3am
6am
4am
7am
5am
8am
6am
9am
WORK
7am
10am
WORK
8am
11am
WORK
9am
WORK
12pm
WORK
10am
WORK
1pm
WORK
11am
WORK
2pm
WORK
12pm
WORK
3pm
WORK
1pm
WORK
4pm
WORK
2pm
WORK
5pm
PINNED
3pm
WORK
6pm
4pm
WORK
7pm
5pm
8pm
6pm
9pm
7pm
10pm
8pm
11pm
9pm
12amTue ·+1d
10pm
1amTue ·+1d
11pm
2amTue ·+1d
daylightnightworking hoursoverlap
Best time to meet
Best for a call
Mexico City
9am–2pm
=
Buenos Aires
12pm–5pm
Popular conversions

Quick reference.

9amMexico City=12pmBuenos Aires
12pmMexico City=3pmBuenos Aires
3pmMexico City=6pmBuenos Aires
5pmMexico City=8pmBuenos Aires
9pmMexico City=12amBuenos Aires · next day
In context

What each side covers.

Mexico City
CST · UTC-06:00
1:02am
Buenos Aires
-03:00 · UTC-03:00
4:02am
Cities on this clock

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 3pm in Mexico City, what time is it in Buenos Aires?
3pm in Mexico City is 6pm in Buenos Aires. That's already evening in Buenos Aires, after the typical working day ends. Use the hour-by-hour table above to read any other time across.
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.