[Overview][Constants][Procedures and functions][Index] 
Return the number of days in the month in which a date occurs.
Source position: dateutil.inc line 113
function DaysInMonth( 
const AValue: TDateTime 
):Word; 
AValue 

Date in month of which to calculate the number of days. 
Number of days in the month in which AValue occurs.
DaysInMonth returns the number of days in the month in which AValue falls. The return value takes leap years into account.

Return the number of weeks in a given year 


return the number of weeks in the year, given a date 


Return the number of days in the year in which a date occurs. 


Number of days in a particular year. 


Number of days in a month of a certain year. 
Program Example16; { This program demonstrates the DaysInMonth function } Uses SysUtils,DateUtils; Var Y,M : Word; Begin For Y:=1992 to 2010 do For M:=1 to 12 do Writeln(LongMonthNames[m],' ',Y,' has ',DaysInMonth(EncodeDate(Y,M,1)),' days.'); End.