| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, 1 January 1978 | 신정 |
| 2 | Monday, 6 February 1978 | 설날 |
| 3 | Tuesday, 7 February 1978 | 설날 |
| 4 | Wednesday, 8 February 1978 | 설날 |
| 5 | Wednesday, 1 March 1978 | 삼일절 |
| 6 | Friday, 5 May 1978 | 어린이날 |
| 7 | Sunday, 14 May 1978 | 석가탄신일 |
| 8 | Tuesday, 6 June 1978 | 현충일 |
| 9 | Monday, 17 July 1978 | 제헌절 |
| 10 | Tuesday, 15 August 1978 | 광복절 |
| 11 | Saturday, 16 September 1978 | 추석 |
| 12 | Sunday, 17 September 1978 | 추석 |
| 13 | Monday, 18 September 1978 | 추석 |
| 14 | Sunday, 1 October 1978 | 국군의 날 |
| 15 | Tuesday, 3 October 1978 | 개천절 |
| 16 | Monday, 9 October 1978 | 한글날 |
| 17 | Monday, 25 December 1978 | 성탄절 |