5.1 Manual English calendar calculation manual (simple, 28/56/84 method) is now available
Quick manual and an academic thesis are also available.
5.1 Manual 
6. Competition 5th SpeedCalendar official competition (21 Aug 2021, 10:00-11:30 (UTC+0900))
Date: 21st August 2021 (Sat)
Time: 10:00-11:30 (UTC+0900)
Venue: Zoom (Login URL is shared in response to the appl...
6. Competition 4th SpeedCalendar official competition result (2021/07/17)
Competition
Date: 17 July 2021 (Sat)
Time: 10:00-10:40 (UTC+0900)
Venue: Zoom
Regulations: See regulations
Broadcas...
5.2 Video How a SpeedCalendar competitor competes in SpeedCalendar.com
SpeedCalendar technique enables an middle age man to calculate the day of the week. Younger people may conduct the c...
6. Competition 3rd SpeedCalendar official competition result (2021/07/03)
Competition
Date: 3 July 2021 (Sat)Time: 10:00-10:40 (UTC+0900)Venue: ZoomRegulations: See regulations
Record
5 day...
6. Competition 4th SpeedCalendar official competition (17 July2021, 10:00-11:30 (UTC+0900))
Date: 17th July 2021 (Sat)
Time: 10:00-11:30 (UTC+0900)
Venue: Zoom (Login URL is shared in response to the ap...
6. Competition 3rd SpeedCalendar official competition (3 July 2021, 10:00-11:30 (UTC+0900))
Date: 3rd July 2021 (Sat)
Time: 10:00-11:30 (UTC+0900)
Venue: Zoom (Login URL is shared in response to the app...
6. Competition 2nd SpeedCalendar official competition result (2021/06/05)
Competition
Date: 5 June 2021 (Sat)
Time: 10:00-10:40 (UTC+0900)
Venue: Zoom
Regulations: See regulations
Record
...
6. Competition 2nd SpeedCalendar official competition (5 June 2021, 10:00-11:30 (UTC+0900))
Date: 5th June 2021 (Sat)
Time: 10:00-11:30 (UTC+0900)
Venue: Zoom (Login URL is shared in response to the applica...
6. Competition 1st SpeedCalendar official competition result (2021/05/03)
Conglatulation to Kosaka!
A new world record 16.671s has been set!
Competition
Date: 3 May 2021 (Mon)
Time: 9:00...