Public holidays
1931, Japan, Banks
| # | Date | Public holiday |
|---|---|---|
| 1 | Thursday, 1 January 1931 | New Year's Day |
| 2 | Friday, 2 January 1931 | January 2 |
| 3 | Saturday, 3 January 1931 | January 3 |
| 4 | Monday, 12 January 1931 | Coming of Age Day |
| 5 | Wednesday, 11 February 1931 | Foundation Day |
| 6 | Friday, 20 March 1931 | Vernal Equinox Day |
| 7 | Wednesday, 29 April 1931 | Shōwa Day |
| 8 | Sunday, 3 May 1931 | Constitution Memorial Day |
| 9 | Monday, 4 May 1931 | Greenery Day |
| 10 | Tuesday, 5 May 1931 | Children's Day |
| 11 | Monday, 20 July 1931 | Marine Day |
| 12 | Monday, 21 September 1931 | Respect-for-Aged Day |
| 13 | Wednesday, 23 September 1931 | Autumnal Equinox Day |
| 14 | Monday, 12 October 1931 | Health and Sports Day |
| 15 | Tuesday, 3 November 1931 | Culture Day |
| 16 | Monday, 23 November 1931 | Labor Thanksgiving Day |
| 17 | Wednesday, 23 December 1931 | Emperor's Birthday |