Public holidays
1670, Japan, Standard
| # | Date | Public holiday |
|---|---|---|
| 1 | Wednesday, 1 January 1670 | New Year's Day |
| 2 | Monday, 13 January 1670 | Coming of Age Day |
| 3 | Tuesday, 11 February 1670 | Foundation Day |
| 4 | Thursday, 20 March 1670 | Vernal Equinox Day |
| 5 | Tuesday, 29 April 1670 | Shōwa Day |
| 6 | Saturday, 3 May 1670 | Constitution Memorial Day |
| 7 | Sunday, 4 May 1670 | Greenery Day |
| 8 | Monday, 5 May 1670 | Children's Day |
| 9 | Monday, 21 July 1670 | Marine Day |
| 10 | Monday, 15 September 1670 | Respect-for-Aged Day |
| 11 | Tuesday, 23 September 1670 | Autumnal Equinox Day |
| 12 | Monday, 13 October 1670 | Health and Sports Day |
| 13 | Monday, 3 November 1670 | Culture Day |
| 14 | Sunday, 23 November 1670 | Labor Thanksgiving Day |
| 15 | Tuesday, 23 December 1670 | Emperor's Birthday |