1 | Wednesday, 1 January 2031 |
New Year's Day |
2 | Thursday, 2 January 2031 |
January 2 |
3 | Friday, 3 January 2031 |
January 3 |
4 | Monday, 13 January 2031 |
Coming of Age Day |
5 | Tuesday, 11 February 2031 |
Foundation Day |
6 | Sunday, 23 February 2031 |
Emperor's Birthday |
| Monday, 24 February 2031 |
Emperor's Birthday (observance) |
7 | Thursday, 20 March 2031 |
Vernal Equinox Day |
8 | Tuesday, 29 April 2031 |
Shōwa Day |
9 | Saturday, 3 May 2031 |
Constitution Memorial Day |
10 | Sunday, 4 May 2031 |
Greenery Day |
11 | Monday, 5 May 2031 |
Children's Day |
12 | Monday, 21 July 2031 |
Marine Day |
13 | Monday, 11 August 2031 |
Mountain Day |
14 | Monday, 15 September 2031 |
Respect-for-Aged Day |
15 | Tuesday, 23 September 2031 |
Autumnal Equinox Day |
16 | Monday, 13 October 2031 |
Health and Sports Day |
17 | Monday, 3 November 2031 |
Culture Day |
18 | Sunday, 23 November 2031 |
Labor Thanksgiving Day |
| Monday, 24 November 2031 |
Labor Thanksgiving Day (observance) |
19 | Wednesday, 31 December 2031 |
New Year's Eve |