| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1955 | 元日 |
| 2 | Sunday, 2 January 1955 | 銀行休業日(1月2日) |
| 3 | Monday, 3 January 1955 | 銀行休業日(1月3日) |
| 4 | Saturday, 15 January 1955 | 成人の日 |
| 5 | Monday, 21 March 1955 | 春分の日 |
| 6 | Friday, 29 April 1955 | 天皇誕生日 |
| 7 | Tuesday, 3 May 1955 | 憲法記念日 |
| 8 | Thursday, 5 May 1955 | こどもの日 |
| 9 | Saturday, 24 September 1955 | 秋分の日 |
| 10 | Thursday, 3 November 1955 | 文化の日 |
| 11 | Wednesday, 23 November 1955 | 勤労感謝の日 |
| 12 | Saturday, 31 December 1955 | 銀行休業日(12月31日) |