Total number of days from first of Jan to beginning of nMonth.
DaysToMonth( <nMonth>, <lLeapYear> ) -> nDaysToMonth
<nMonth> Number of month
<lLeapYear> Is year is leapyear
lLeap is FALSE for a non-leap year but TRUE if it is. If so and nMonth is greater than 2, ndays is incremented
DaysToMonth() is a new function in Harbour’s CT3 library.
Source is dattime2.prg, library is libct.