When it is 12:00 PM in Cupertino, it is 4:00 AM the next day in Seoul.
📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.
Cupertino is 16 hours behind Seoul.
🕐 Add 16 hours to Cupertino time to get Seoul time.
Cupertino uses 7 hours behind Universal Time (UTC-7) and Seoul uses 9 hours ahead of Universal Time (UTC+9).
| Cupertino Time | Seoul Time | |
|---|---|---|
| 12 AM Cupertino Time | ↔ | ☼ 4 PM Seoul Time |
| 1 AM Cupertino Time | ↔ | ☼ 5 PM Seoul Time |
| 2 AM Cupertino Time | ↔ | ☼ 6 PM Seoul Time |
| 3 AM Cupertino Time | ↔ | ☼ 7 PM Seoul Time |
| 4 AM Cupertino Time | ↔ | 8 PM Seoul Time |
| ☼ 5 AM Cupertino Time | ↔ | 9 PM Seoul Time |
| ☼ 6 AM Cupertino Time | ↔ | 10 PM Seoul Time |
| ☼ 7 AM Cupertino Time | ↔ | 11 PM Seoul Time |
| ☼ 8 AM Cupertino Time | ↔ | 12 AM Seoul Time |
| ☼ 9 AM Cupertino Time | ↔ | 1 AM Seoul Time |
| ☼ 10 AM Cupertino Time | ↔ | 2 AM Seoul Time |
| ☼ 11 AM Cupertino Time | ↔ | 3 AM Seoul Time |
| Cupertino Time | Seoul Time | |
|---|---|---|
| ☼ 12 PM Cupertino Time | ↔ | 4 AM Seoul Time |
| ☼ 1 PM Cupertino Time | ↔ | ☼ 5 AM Seoul Time |
| ☼ 2 PM Cupertino Time | ↔ | ☼ 6 AM Seoul Time |
| ☼ 3 PM Cupertino Time | ↔ | ☼ 7 AM Seoul Time |
| ☼ 4 PM Cupertino Time | ↔ | ☼ 8 AM Seoul Time |
| ☼ 5 PM Cupertino Time | ↔ | ☼ 9 AM Seoul Time |
| ☼ 6 PM Cupertino Time | ↔ | ☼ 10 AM Seoul Time |
| ☼ 7 PM Cupertino Time | ↔ | ☼ 11 AM Seoul Time |
| ☼ 8 PM Cupertino Time | ↔ | ☼ 12 PM Seoul Time |
| 9 PM Cupertino Time | ↔ | ☼ 1 PM Seoul Time |
| 10 PM Cupertino Time | ↔ | ☼ 2 PM Seoul Time |
| 11 PM Cupertino Time | ↔ | ☼ 3 PM Seoul Time |
Cupertino is 16 hours behind Seoul.
Cupertino is behind Seoul by 16 hours.
It is 1:00 AM the next day in Seoul.