The short answer
Beijing is 11 hours ahead of Buenos Aires.
Beijing☀
8:29:55am
CST · UTC+08:00 · Fri, Sep 25
Buenos Aires☾
9:29:55pm
-03:00 · UTC-03:00 · Thu, Sep 24
Read across to convert
Beijing
CST · UTC+08:00
Buenos Aires
-03:00 · UTC-03:00
Click any row to pin that hour across both zones.
12amFri
1pmThu ·−1d
WORK1am
2pmThu ·−1d
WORK2am
3pmThu ·−1d
WORK3am
4pmThu ·−1d
WORK4am
5pmThu ·−1d
5am
6pmThu ·−1d
6am
7pmThu ·−1d
7am
8pmThu ·−1d
NOW
8am
9pmThu ·−1d
9am
WORK10pmThu ·−1d
10am
WORK11pmThu ·−1d
11am
WORK12amFri
12pm
WORK1am
1pm
WORK2am
2pm
WORK3am
3pm
WORK4am
4pm
WORK5am
5pm
6am
6pm
7am
7pm
8am
8pm
9am
WORK9pm
10am
WORK10pm
11am
WORK11pm
12pm
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Beijing
6pm–7pm
Buenos Aires
7am–8am
Popular conversions
Quick reference.
9amBeijing=10pmBuenos Aires · prev day
12pmBeijing=1amBuenos Aires
3pmBeijing=4amBuenos Aires
5pmBeijing=6amBuenos Aires
9pmBeijing=10amBuenos Aires
In context
What each side covers.
Buenos Aires
9:29pm-03:00 · UTC-03:00
Cities on this clock
Related converters
Other popular pairs.
Pacific Time
5:29pm
India Standard Time
5:59am
Pacific Time to India12 hours 30 minutes behind
Eastern Daylight Time
8:29pm
Central European Time
2:29am
Eastern Time to Central Europe6 hours behind
India Standard Time
5:59am
Eastern Daylight Time
8:29pm
India to Eastern Time9 hours 30 minutes ahead
British Summer Time
1:29am
India Standard Time
5:59am
London to India4 hours 30 minutes behind
Pacific Daylight Time
5:29pm
Eastern Daylight Time
8:29pm
Pacific to Eastern Time3 hours behind
Central European Time
2:29am
India Standard Time
5:59am
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Beijing and Buenos Aires. Can't find what you need? Email [email protected].
- What is the time difference between Beijing and Buenos Aires?
- Beijing is 11 hours ahead of 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 Beijing, what time is it in Buenos Aires?
- 9am in Beijing is 10pm in Buenos Aires on the previous day. 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 Beijing and Buenos Aires?
- There's no comfortable 9-to-5 overlap between Beijing and Buenos Aires — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
- 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.