1 | Monday, 1 January 1551 |
New Year's Day |
2 | Tuesday, 2 January 1551 |
January 2 |
3 | Wednesday, 3 January 1551 |
January 3 |
4 | Monday, 8 January 1551 |
Coming of Age Day |
5 | Sunday, 11 February 1551 |
Foundation Day |
| Monday, 12 February 1551 |
Foundation Day (observance) |
6 | Tuesday, 20 March 1551 |
Vernal Equinox Day |
7 | Sunday, 29 April 1551 |
Shōwa Day |
| Monday, 30 April 1551 |
Shōwa Day (observance) |
8 | Thursday, 3 May 1551 |
Constitution Memorial Day |
9 | Friday, 4 May 1551 |
Greenery Day |
10 | Saturday, 5 May 1551 |
Children's Day |
11 | Monday, 16 July 1551 |
Marine Day |
12 | Monday, 17 September 1551 |
Respect-for-Aged Day |
13 | Sunday, 23 September 1551 |
Autumnal Equinox Day |
| Monday, 24 September 1551 |
Autumnal Equinox Day (observance) |
14 | Monday, 8 October 1551 |
Health and Sports Day |
15 | Saturday, 3 November 1551 |
Culture Day |
16 | Friday, 23 November 1551 |
Labor Thanksgiving Day |
17 | Sunday, 23 December 1551 |
Emperor's Birthday |
| Monday, 24 December 1551 |
Emperor's Birthday (observance) |
18 | Monday, 31 December 1551 |
New Year's Eve |