A more regular year
13 months.
28 days each.
This view keeps ordinary Gregorian dates underneath for compatibility, while giving every month exactly four weeks. The extra Year Day — and Leap Day when needed — sit outside the weekly cycle.
Year
Tap a day to see its normal Gregorian date.
Model: this follows the International Fixed Calendar pattern: Sol is the 7th month, inserted between June and July. Every month begins on Sunday. Year Day follows December 28; Leap Day is inserted after June 28 in leap years. These special days have no weekday, so the 52-week rhythm never shifts.