JST to Buenos Aires Time Converter
ART is 12 hours behind JST. 9:00 AM JST = 9:00 PM ART (previous day).
ART is 12 hours behind JST. To convert JST to Buenos Aires Time, subtract 12 hours from the JST time: 9:00 AM JST = 9:00 PM ART (previous day).
JST (Japan Time) is used in Japan. Buenos Aires Time (Buenos Aires time) is used in Buenos Aires, Argentina.
JST to Buenos Aires Time time conversion table
JST to Buenos Aires Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| JST | Buenos Aires Time | Day |
|---|---|---|
| 12:00 AM JST | 12:00 PM ART | previous day |
| 1:00 AM JST | 1:00 PM ART | previous day |
| 2:00 AM JST | 2:00 PM ART | previous day |
| 3:00 AM JST | 3:00 PM ART | previous day |
| 4:00 AM JST | 4:00 PM ART | previous day |
| 5:00 AM JST | 5:00 PM ART | previous day |
| 6:00 AM JST | 6:00 PM ART | previous day |
| 7:00 AM JST | 7:00 PM ART | previous day |
| 8:00 AM JST | 8:00 PM ART | previous day |
| 9:00 AM JST | 9:00 PM ART | previous day |
| 10:00 AM JST | 10:00 PM ART | previous day |
| 11:00 AM JST | 11:00 PM ART | previous day |
| 12:00 PM JST | 12:00 AM ART | night |
| 1:00 PM JST | 1:00 AM ART | night |
| 2:00 PM JST | 2:00 AM ART | night |
| 3:00 PM JST | 3:00 AM ART | night |
| 4:00 PM JST | 4:00 AM ART | night |
| 5:00 PM JST | 5:00 AM ART | night |
| 6:00 PM JST | 6:00 AM ART | — |
| 7:00 PM JST | 7:00 AM ART | — |
| 8:00 PM JST | 8:00 AM ART | — |
| 9:00 PM JST | 9:00 AM ART | — |
| 10:00 PM JST | 10:00 AM ART | — |
| 11:00 PM JST | 11:00 AM ART | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert JST to Buenos Aires Time
Subtract 12 hours from the JST time to get Buenos Aires Time.
Example: 9:00 AM JST = 9:00 PM ART (previous day).
Across midnight: 1:00 AM JST = 1:00 PM ART (previous day). The date changes, so always check the day as well as the hour.
Time difference between JST and Buenos Aires Time
The time difference between JST and Buenos Aires Time is 12 hours all year – ART is behind JST.
JST and Buenos Aires Time during daylight saving time
- JST does not observe daylight saving time; it stays on UTC+9 all year.
- Buenos Aires Time does not observe daylight saving time; it stays on UTC−3 all year.
Best time for a meeting between JST and Buenos Aires Time
JST and Buenos Aires Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 7:00 PM ART.
JST to Buenos Aires Time FAQ
What is the time difference between JST and Buenos Aires Time?
ART is 12 hours behind JST all year. 9:00 AM JST = 9:00 PM ART (previous day).
What is 9 AM JST in Buenos Aires Time?
9:00 AM JST is 9:00 PM ART (previous day).
What is 12 PM (noon) JST in Buenos Aires Time?
12:00 PM JST is 12:00 AM ART.
Is Buenos Aires Time ahead of or behind JST?
ART is 12 hours behind JST, so it is earlier in Buenos Aires Time than in JST.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
Does Buenos Aires Time change for daylight saving time?
No. Buenos Aires Time stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between JST and Buenos Aires Time?
JST and Buenos Aires Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 7:00 PM ART.
Related conversions
Convert Buenos Aires Time to JST
Convert JST to other time zones
Convert other time zones to Buenos Aires Time
Updated 7 November 2026. Time zone data: IANA tz database.