Public holidays
1663, Japan, Banks
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1663 | New Year's Day |
| 2 | Tuesday, 2 January 1663 | January 2 |
| 3 | Wednesday, 3 January 1663 | January 3 |
| 4 | Monday, 8 January 1663 | Coming of Age Day |
| 5 | Sunday, 11 February 1663 | Foundation Day |
| Monday, 12 February 1663 | Foundation Day (observance) | |
| 6 | Tuesday, 20 March 1663 | Vernal Equinox Day |
| 7 | Sunday, 29 April 1663 | Shōwa Day |
| Monday, 30 April 1663 | Shōwa Day (observance) | |
| 8 | Thursday, 3 May 1663 | Constitution Memorial Day |
| 9 | Friday, 4 May 1663 | Greenery Day |
| 10 | Saturday, 5 May 1663 | Children's Day |
| 11 | Monday, 16 July 1663 | Marine Day |
| 12 | Monday, 17 September 1663 | Respect-for-Aged Day |
| 13 | Sunday, 23 September 1663 | Autumnal Equinox Day |
| Monday, 24 September 1663 | Autumnal Equinox Day (observance) | |
| 14 | Monday, 8 October 1663 | Health and Sports Day |
| 15 | Saturday, 3 November 1663 | Culture Day |
| 16 | Friday, 23 November 1663 | Labor Thanksgiving Day |
| 17 | Sunday, 23 December 1663 | Emperor's Birthday |
| Monday, 24 December 1663 | Emperor's Birthday (observance) | |
| 18 | Monday, 31 December 1663 | New Year's Eve |