The short answer

4pm in Japan Standard Time is 4am in Buenos Aires.

Japan Standard Time is 12 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.

Japan Standard Time
4pm
Buenos Aires
4am
Right now
5:03pmJST · UTC+09:00 · Mon, Jun 22
5:03am-03:00 · UTC-03:00 · Mon, Jun 22
Read across to convert
Japan Standard Time
JST · UTC+09:00
5:03pm ☀
Buenos Aires
-03:00 · UTC-03:00
5:03am ☾
Pinned4pmJapan Standard Time=4amBuenos Aires
12amMon
12pmSun ·−1d
WORK
1am
1pmSun ·−1d
WORK
2am
2pmSun ·−1d
WORK
3am
3pmSun ·−1d
WORK
4am
4pmSun ·−1d
WORK
5am
5pmSun ·−1d
6am
6pmSun ·−1d
7am
7pmSun ·−1d
8am
8pmSun ·−1d
9am
WORK
9pmSun ·−1d
10am
WORK
10pmSun ·−1d
11am
WORK
11pmSun ·−1d
12pm
WORK
12amMon
1pm
WORK
1am
2pm
WORK
2am
3pm
WORK
3am
PINNED
4pm
WORK
4am
NOW
5pm
5am
6pm
6am
7pm
7am
8pm
8am
9pm
9am
WORK
10pm
10am
WORK
11pm
11am
WORK
daylightnightworking hoursoverlap
Best time to meet
No shared working hours.

Japan Standard Time and Buenos Aires are too far apart for a working-day overlap. The least-unsociable option is an early-morning call on one side and an evening one on the other — or hand work off asynchronously and let the planet do the waiting.

Popular conversions

Quick reference.

9amJapan Standard Time=9pmBuenos Aires · prev day
12pmJapan Standard Time=12amBuenos Aires
3pmJapan Standard Time=3amBuenos Aires
5pmJapan Standard Time=5amBuenos Aires
9pmJapan Standard Time=9amBuenos Aires
In context

What each side covers.

Japan Standard Time
JST · UTC+09:00
5:03pm
Cities on this clock
Buenos Aires
-03:00 · UTC-03:00
5:03am
Cities on this clock

Frequently asked

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

What is the time difference between Japan Standard Time and Buenos Aires?
Japan Standard Time is 12 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 4pm in Japan Standard Time, what time is it in Buenos Aires?
4pm in Japan Standard Time is 4am in Buenos Aires. 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 Japan Standard Time and Buenos Aires?
There's no comfortable 9-to-5 overlap between Japan Standard Time 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 — JST 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.