And if we likewise took leap day out of the calendar, the new year would always begin on the same weekday. We'd thus have a perennial calendar. We can take a day out of the calendar without deviating from the solar cycle of approximately 365.24 days by simply regarding the day as a 24-hour waiting period before resuming the calendar again. It seems most reasonable to treat them as holidays. That's part of the rationale behind The World Calendar , promoted by The World Calendar Association from 1930.
Every year is the same.
Each month has 26 weekdays, plus Sundays. Each quarter begins on Sunday, ends on Saturday. The calendar is stabilized and made perpetual by ending the year with a 365th day following 30 December each year. This additional day is dated 'W,' which equals 31 December, and called Worldsday , a year-end world holiday. Leap-year Day is similarly added at the end of the second quarter.