Public holidays
1664, South Korea
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 1664 | 신정 |
| 2 | Saturday, 1 March 1664 | 삼일절 |
| 3 | Monday, 5 May 1664 | 어린이날 |
| 4 | Friday, 6 June 1664 | 현충일 |
| 5 | Friday, 15 August 1664 | 광복절 |
| 6 | Friday, 3 October 1664 | 개천절 |
| 7 | Thursday, 25 December 1664 | 성탄절 |