DelphiBasics
MonthDays
Constant
Gives the number of days in a month SysUtils unit
  const MonthDays : array [Boolean] of TDayTable =
      ((31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
       (31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31));
Description
The MonthDays constant is a useful part of the SysUtils unit. It gives the number of days in a month, with 29 returned for February if the year is a leap year (Boolean first array parameter). This is best understood by looking at the sample code.
Related commands
DaysInAMonth Gives the number of days in a month
DaysInAYear Gives the number of days in a year
MinsPerDay Gives the number of minutes in a day
SecsPerDay Gives the number of seconds in a day
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Example code : How many days in February 2000 ?
begin
  // How many days in February 2000 ?
  ShowMessage('Days in February 2000 = '+
              IntToStr(MonthDays[IsLeapYear(2000)][2]));
end;
Show full unit code
   Days in February 2000 = 29
 
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