New Year's Day
January 2
January 3
Coming of Age Day
Foundation Day
Vernal Equinox Day
Shōwa Day
Constitution Memorial Day
Greenery Day
Children's Day
Marine Day
Respect-for-Aged Day
Autumnal Equinox Day
Health and Sports Day
Culture Day
Labor Thanksgiving Day
Emperor's Birthday
New Year's Eve
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1659
1660
1661 › 
# Date Public holiday
1Thursday, 1 January 1660 New Year's Day
2Friday, 2 January 1660 January 2
3Saturday, 3 January 1660 January 3
4Monday, 12 January 1660 Coming of Age Day
5Wednesday, 11 February 1660 Foundation Day
6Saturday, 20 March 1660 Vernal Equinox Day
7Thursday, 29 April 1660 Shōwa Day
8Monday, 3 May 1660 Constitution Memorial Day
9Tuesday, 4 May 1660 Greenery Day
10Wednesday, 5 May 1660 Children's Day
11Monday, 19 July 1660 Marine Day
12Monday, 20 September 1660 Respect-for-Aged Day
13Thursday, 23 September 1660 Autumnal Equinox Day
14Monday, 11 October 1660 Health and Sports Day
15Wednesday, 3 November 1660 Culture Day
16Tuesday, 23 November 1660 Labor Thanksgiving Day
17Thursday, 23 December 1660 Emperor's Birthday
18Friday, 31 December 1660 New Year's Eve