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  Download this web site as a Windows program.

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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