Public holidays
2278, Japan, Standard
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 2278 | New Year's Day |
| 2 | Monday, 14 January 2278 | Coming of Age Day |
| 3 | Monday, 11 February 2278 | Foundation Day |
| 4 | Saturday, 23 February 2278 | Emperor's Birthday |
| 5 | Wednesday, 20 March 2278 | Vernal Equinox Day |
| 6 | Monday, 29 April 2278 | Shōwa Day |
| 7 | Friday, 3 May 2278 | Constitution Memorial Day |
| 8 | Saturday, 4 May 2278 | Greenery Day |
| 9 | Sunday, 5 May 2278 | Children's Day |
| Monday, 6 May 2278 | Children's Day (observance) | |
| 10 | Monday, 15 July 2278 | Marine Day |
| 11 | Sunday, 11 August 2278 | Mountain Day |
| Monday, 12 August 2278 | Mountain Day (observance) | |
| 12 | Monday, 16 September 2278 | Respect-for-Aged Day |
| 13 | Monday, 23 September 2278 | Autumnal Equinox Day |
| 14 | Monday, 14 October 2278 | Health and Sports Day |
| 15 | Sunday, 3 November 2278 | Culture Day |
| Monday, 4 November 2278 | Culture Day (observance) | |
| 16 | Saturday, 23 November 2278 | Labor Thanksgiving Day |