Calculator tip - Daily Mitzvah day #60

foreign sanctifying the new month and setting up the calendar and making the new making and setting up the years how the years work leap years and full months and months that are in 29 days and 30 days two days restradish and all that good stuff a rule of thumb to keep in mind is that a year must be made up of full complete months can have a year that's 12 months plus two weeks right because the discrepancy between the solar year and the lunar year is about 10 and a half days so just say Okay so a year should be one 12 months and 11 days what's wrong with that no um a year has made up of complete months so that is a good rule of thumb to keep in mind that helps you make the calculations