| # | Date | Public holiday |
|---|---|---|
| 1 | Thursday, 1 January 2004 | 신정 |
| 2 | Wednesday, 21 January 2004 | 설날 |
| 3 | Thursday, 22 January 2004 | 설날 |
| 4 | Friday, 23 January 2004 | 설날 |
| 5 | Monday, 1 March 2004 | 삼일절 |
| 6 | Thursday, 15 April 2004 | 선거일 |
| 7 | Wednesday, 5 May 2004 | 어린이날 |
| 8 | Wednesday, 26 May 2004 | 석가탄신일 |
| 9 | Sunday, 6 June 2004 | 현충일 |
| 10 | Saturday, 17 July 2004 | 제헌절 |
| 11 | Sunday, 15 August 2004 | 광복절 |
| 12 | Monday, 27 September 2004 | 추석 |
| 13 | Tuesday, 28 September 2004 | 추석 |
| 14 | Wednesday, 29 September 2004 | 추석 |
| 15 | Sunday, 3 October 2004 | 개천절 |
| 16 | Saturday, 25 December 2004 | 성탄절 |