Live Synchronized Time Difference
SeoultoRio de JaneiroTime Difference
🇰🇷
Seoul
South Korea (GMT+9)00:10:23UTC+9:00
🇧🇷
Rio de Janeiro
Brazil (GMT-3)12:10:23UTC-3:00
Direct Distance18,133 km (11,267 miles)
Estimated Flight Time~21.8 hours
Business Overlap0 overlapping hours (9am–5pm)
Feasible Shoulder Hours Window
Recommended calling window between Seoul and Rio de Janeiro
Off-Peak Calling Window
Seoul Time
7:00 AM – 9:00 PM
Rio de Janeiro Time
7:00 PM – 9:00 AM
There are no overlapping 9-to-5 working hours between Seoul and Rio de Janeiro. The optimal compromise window falls during morning/evening shoulder periods (7:00 AM – 9:00 PM) when participants in both locations are awake.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between Seoul and Rio de Janeiro.
Work (9am-5pm)ShoulderSleep / Off
| Seoul Time (South Korea) | Rio de Janeiro Time (Brazil) | Status & Recommendation |
|---|---|---|
| 00:00AM | 12:00PM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 13:00PM-1 day | ⚪ Outside Work Hours |
| 02:00AM | 14:00PM-1 day | ⚪ Outside Work Hours |
| 03:00AM | 15:00PM-1 day | ⚪ Outside Work Hours |
| 04:00AM | 16:00PM-1 day | ⚪ Outside Work Hours |
| 05:00AM | 17:00PM-1 day | ⚪ Outside Work Hours |
| 06:00AM | 18:00PM-1 day | ⚪ Outside Work Hours |
| 07:00AM | 19:00PM-1 day | ⚪ Outside Work Hours |
| 08:00AM | 20:00PM-1 day | ⚪ Outside Work Hours |
| 09:00AM | 21:00PM-1 day | ⚪ Outside Work Hours |
| 10:00AM | 22:00PM-1 day | ⚪ Outside Work Hours |
| 11:00AM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 12:00PM | 00:00AM | ⚪ Outside Work Hours |
| 13:00PM | 01:00AM | ⚪ Outside Work Hours |
| 14:00PM | 02:00AM | ⚪ Outside Work Hours |
| 15:00PM | 03:00AM | ⚪ Outside Work Hours |
| 16:00PM | 04:00AM | ⚪ Outside Work Hours |
| 17:00PM | 05:00AM | ⚪ Outside Work Hours |
| 18:00PM | 06:00AM | ⚪ Outside Work Hours |
| 19:00PM | 07:00AM | ⚪ Outside Work Hours |
| 20:00PM | 08:00AM | ⚪ Outside Work Hours |
| 21:00PM | 09:00AM | ⚪ Outside Work Hours |
| 22:00PM | 10:00AM | ⚪ Outside Work Hours |
| 23:00PM | 11:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Seoul and Rio de Janeiro?
Rio de Janeiro is 12 hours behind Seoul.
What is the best time to schedule a cross-border meeting between Seoul and Rio de Janeiro?
Because of the wide timezone separation, a compromise meeting window during early morning in one location and evening in the other is recommended.
Does daylight saving time (DST) affect the time difference between Seoul and Rio de Janeiro?
Yes. If either South Korea or Brazil observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.