The Simple Lunisolar Calendar is a proposal for calendar reform by Robert Pontisso. It is a non-radical lunisolar calendar which uses the 7-day week. Each year starts from the Gregorian calendar December 3 - January 1. Each month starts on or close to the day of the new moon. All the months except the sixth have fixed lengths. The months are named after the letters of the Greek alphabet and their names and the number of days they have are: