Public holidays
2257, Japan, Standard
| # | Date | Public holiday |
|---|---|---|
| 1 | Thursday, 1 January 2257 | 元日 |
| 2 | Monday, 12 January 2257 | 成人の日 |
| 3 | Wednesday, 11 February 2257 | 建国記念の日 |
| 4 | Monday, 23 February 2257 | 天皇誕生日 |
| 5 | Wednesday, 29 April 2257 | 昭和の日 |
| 6 | Sunday, 3 May 2257 | 憲法記念日 |
| 7 | Monday, 4 May 2257 | みどりの日 |
| 8 | Tuesday, 5 May 2257 | こどもの日 |
| 9 | Wednesday, 6 May 2257 | 憲法記念日（振替休日） |
| 10 | Monday, 20 July 2257 | 海の日 |
| 11 | Tuesday, 11 August 2257 | 山の日 |
| 12 | Monday, 21 September 2257 | 敬老の日 |
| 13 | Monday, 12 October 2257 | スポーツの日 |
| 14 | Tuesday, 3 November 2257 | 文化の日 |
| 15 | Monday, 23 November 2257 | 勤労感謝の日 |