The time difference between Seoul and Rio de Janeiro is 12 hours. When it is 12:00 noon in Seoul, it is 00:00 in Rio de Janeiro. Seoul uses the Asia/Seoul time zone (UTC+9), while Rio de Janeiro uses America/Sao_Paulo (UTC-3).
| Detail | Seoul | Rio de Janeiro |
|---|---|---|
| Time Zone ID | Asia/Seoul | America/Sao_Paulo |
| UTC Offset | UTC+9 | UTC-3 |
| Abbreviation | KST | -03 |
| DST Active | No | No |
| Country | South Korea | Brazil |
| Region | Asia | South America |
With a 12 hours gap, there is no standard business-hours overlap between Seoul and Rio de Janeiro. One party will need to adjust their schedule. Early mornings in Seoul or late evenings in Rio de Janeiro tend to be the most practical compromise.
Use this table to quickly convert any hour from Seoul time to Rio de Janeiro time. Rows highlighted in green indicate overlapping business hours in both cities.
| Seoul | Rio de Janeiro | |
|---|---|---|
| 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 Seoul nor Rio de Janeiro 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. Rio de Janeiro is 12 hours behind Seoul.
It can. If either Seoul or Rio de Janeiro 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 Seoul time to get Rio de Janeiro 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.