Public holidays
1680, Japan, Banks
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1680 | New Year's Day |
| 2 | Tuesday, 2 January 1680 | January 2 |
| 3 | Wednesday, 3 January 1680 | January 3 |
| 4 | Monday, 8 January 1680 | Coming of Age Day |
| 5 | Sunday, 11 February 1680 | Foundation Day |
| Monday, 12 February 1680 | Foundation Day (observance) | |
| 6 | Wednesday, 20 March 1680 | Vernal Equinox Day |
| 7 | Monday, 29 April 1680 | Shōwa Day |
| 8 | Friday, 3 May 1680 | Constitution Memorial Day |
| 9 | Saturday, 4 May 1680 | Greenery Day |
| 10 | Sunday, 5 May 1680 | Children's Day |
| Monday, 6 May 1680 | Children's Day (observance) | |
| 11 | Monday, 15 July 1680 | Marine Day |
| 12 | Monday, 16 September 1680 | Respect-for-Aged Day |
| 13 | Monday, 23 September 1680 | Autumnal Equinox Day |
| 14 | Monday, 14 October 1680 | Health and Sports Day |
| 15 | Sunday, 3 November 1680 | Culture Day |
| Monday, 4 November 1680 | Culture Day (observance) | |
| 16 | Saturday, 23 November 1680 | Labor Thanksgiving Day |
| 17 | Monday, 23 December 1680 | Emperor's Birthday |
| 18 | Tuesday, 31 December 1680 | New Year's Eve |