The short answer
9am in Beijing is 10pm in Buenos Aires on the previous day.
Beijing is 11 hours ahead of Buenos Aires. It lands deep outside working hours in Buenos Aires — see the best time to meet below for a friendlier slot.
Beijing☀
9am
Buenos Aires☾
10pm
previous day
Right now
7:45pmCST · UTC+08:00 · Mon, Jun 22
8:45am-03:00 · UTC-03:00 · Mon, Jun 22
Read across to convert
Beijing
CST · UTC+08:00
Buenos Aires
-03:00 · UTC-03:00
Pinned9amBeijing=10pmBuenos Aires · Sun (previous day)
12amMon
1pmSun ·−1d
WORK1am
2pmSun ·−1d
WORK2am
3pmSun ·−1d
WORK3am
4pmSun ·−1d
WORK4am
5pmSun ·−1d
5am
6pmSun ·−1d
6am
7pmSun ·−1d
7am
8pmSun ·−1d
8am
9pmSun ·−1d
PINNED
9am
WORK10pmSun ·−1d
10am
WORK11pmSun ·−1d
11am
WORK12amMon
12pm
WORK1am
1pm
WORK2am
2pm
WORK3am
3pm
WORK4am
4pm
WORK5am
5pm
6am
6pm
7am
NOW
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
8:45am-03:00 · UTC-03:00
Cities on this clock
Related converters
Other popular pairs.
Pacific Time
4:45am
India Standard Time
5:15pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
7:45am
Central European Time
1:45pm
Eastern Time to Central Europe6 hours behind
India Standard Time
5:15pm
Eastern Standard Time
7:45am
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
12:45pm
India Standard Time
5:15pm
London to India4 hours 30 minutes behind
Pacific Standard Time
4:45am
Eastern Standard Time
7:45am
Pacific to Eastern Time3 hours behind
Central European Time
1:45pm
India Standard Time
5:15pm
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. It lands deep outside working hours in Buenos Aires — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
- 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.