The time difference between Tokyo and Buenos Aires is 12 hours. When it is 12:00 noon in Tokyo, it is 00:00 in Buenos Aires. Tokyo uses the Asia/Tokyo time zone (UTC+9), while Buenos Aires uses America/Argentina/Buenos_Aires (UTC-3).
| Detail | Tokyo | Buenos Aires |
|---|---|---|
| Time Zone ID | Asia/Tokyo | America/Argentina/Buenos_Aires |
| UTC Offset | UTC+9 | UTC-3 |
| Abbreviation | JST | -03 |
| DST Active | No | No |
| Country | Japan | Argentina |
| Region | Asia | South America |
With a 12 hours gap, there is no standard business-hours overlap between Tokyo and Buenos Aires. One party will need to adjust their schedule. Early mornings in Tokyo or late evenings in Buenos Aires tend to be the most practical compromise.
Use this table to quickly convert any hour from Tokyo time to Buenos Aires time. Rows highlighted in green indicate overlapping business hours in both cities.
| Tokyo | Buenos Aires | |
|---|---|---|
| 00:00 | 12:00 (-1 day) | Night |
| 01:00 | 13:00 (-1 day) | Night |
| 02:00 | 14:00 (-1 day) | Night |
| 03:00 | 15:00 (-1 day) | Night |
| 04:00 | 16:00 (-1 day) | Night |
| 05:00 | 17:00 (-1 day) | Night |
| 06:00 | 18:00 (-1 day) | |
| 07:00 | 19:00 (-1 day) | |
| 08:00 | 20:00 (-1 day) | |
| 09:00 | 21:00 (-1 day) | |
| 10:00 | 22:00 (-1 day) | |
| 11:00 | 23:00 (-1 day) | |
| 12:00 | 00:00 | |
| 13:00 | 01:00 | |
| 14:00 | 02:00 | |
| 15:00 | 03:00 | |
| 16:00 | 04:00 | |
| 17:00 | 05:00 | |
| 18:00 | 06:00 | |
| 19:00 | 07:00 | |
| 20:00 | 08:00 | |
| 21:00 | 09:00 | |
| 22:00 | 10:00 | Night |
| 23:00 | 11:00 | Night |
Neither Tokyo nor Buenos Aires is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.
The time difference is 12 hours. Buenos Aires is 12 hours behind Tokyo.
It can. If either Tokyo or Buenos Aires observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).
There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.
Subtract 12 hours from Tokyo time to get Buenos Aires time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.