Each quarter begins on Sunday and ends on Saturday. The quarters lengths are same: each has exactly 91 days, 13 weeks or 3 months. The three months have 31, 30, 30 days respectively.
The World Calendar also has two extra days outside of the week to keep the new year days as same as the Gregorian calendar.
Worldsday
The last day of the year after 30 December. This day is named Worldsday.
Leapyear Day
The leap day after 30 June. This day is named Leapyear Day.
Criticism
The main critics of The World Calendar are the leaders of religions that worship according to a seven-day cycle.[2]