Day Number Calendar
Shows what day of the week it is in Riverdale's eight-day cycle.
Add to Apple Calendar
On an iPhone: Tap Add Calendar, Add Subscription Calendar, and paste in this url: joelgrayson.com/software/day-number-calendar/apple
On a Mac: Click File, New Calendar Subscription, and paste in the same url: joelgrayson.com/software/day-number-calendar/apple