6. Competition SpeedCalendar official competition
Official Competition55th2026/06/14 (Sun) 16:00-16:30 (Japan Standard Time, UTC +0900)Venue: Zoom (Login URL is shared in...
6. Competition 
1. Service SpeedCalendar Print is now available!
To be more casual and to realize device(mouse/keyboard)-independent-competition, SpeedCalendar Print is now available.
2. Calendar knowledge 元号変換方法（Gengo – Western Year conversion method）
元号←→西暦の変換は「むなしい人々、ニコニコパパ、いっぱい」で覚えましょう。なお平成12年～30年は12を引くと、20xx年になります。
1. Service SpeedCalendar now supports Japanese Gengo
The official Japanese system , Gengō (元号) , is now supported by SpeedCalendar.
6. Competition [Announcement] Competition format changes
From the next competition (23rd official competition), competitors compete: 5 day single attempt once, and 1 minute atte...
6. Competition 13th SpeedCalendar official competition result (2022/04/17)
CompetitionDate: 17 Apr 2022 (Sun)Time: 9:00-10:00 (UTC+0900)Venue: ZoomRegulations: See regulationsRecord5 days single#...
6. Competition 12th SpeedCalendar official competition result (2022/03/12)
CompetitionDate: 12 Mar 2022 (Sat)Time: 15:30-16:00 (UTC+0900)Venue: ZoomRegulations: See regulationsRecord5 days single...
3.2 Other Timer SpeedCalendar Audio is released!
Now, SpeedCalendar Audio is officially released! This is a preliminary version, but you will see how it works. The featu...
3.2 Other Timer [Release] Official Timer (2022/02 beta) released
To manage the competition result flexibly, the Database of SpeedCalendar timer will be switched from Google Spreadsheet ...
1. daily technique Today is 2022/02/02！
如果你做了速度日历，你会得到以下的小信息！スピードカレンダー（曜日計算競技）をすると、いかのような豆知識が得られます！#速度日历 #计算星期几 #曜日計算 #暦計算 #メモリースポーツ
1. daily technique [Fast Calculation] Y2M method and M2Y method
In SpeedCalendar, the calculation of January and February is a factor that greatly affects the calculation speed. Here, ...