Notes:
This is based on Moses Bruine Cotsworth's Rational Calendar.
There are thirteen months of 28 Days. There is a new month called 'Sol' between June and July. Each month begins on Sunday, 1st and ends on Saturday, 28th.
Christmas day is always on Sunday, 22nd December in the Rational calendar, the equivalent of 24th December in the Gregorian calendar.
Boxing Day is the day after Sunday,22nd December, is also a Sunday, and is followed by Monday, 23rd December.
Leap years occur every 4 years as usual, but an extra day (a Sunday) is added after the 28th June, rather than in February.