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 Broadcast: tw...
6. Competition 
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 calen...
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 days sin...
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 application)...
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 application) ...
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 5 days ...
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 application) ...
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: 9:00-10:00 (...
6. Competition 1st SpeedCalendar official competition (3 May 2021, 9:00-10:00 (UTC+0900))
Date: 3 May 2021 (Mon) Time: 9:00-10:00 (UTC+0900) Venue: Zoom (Login URL is shared in response to the application) Regu...
5.1 Manual [English/Japanese/Chinese] Available quick manual for calculating day of week (28/56/84 method)
You do not know how to calculate the day of the week? Why don't you master 28/56/84 method? It enables to calculate th...