StartOfAMonth

Return first date of month, given a year/month pair.

Declaration

Source position: dateutil.inc line 144

function StartOfAMonth(

const AYear: Word;

const AMonth: Word

):TDateTime;

Arguments

`AYear`		A year.
`AMonth`		Month in the year.

Function result

First day of the month AMonth in AYear

Description

StartOfAMonth e returns a TDateTime value with the date of the first day of the month indicated by the AYear, AMonth pair.

StartOfTheMonth		Calculate the first day of the month, given a date in that month.
EndOfTheMonth		Calculate a DateTime value representing the last day of the month, given a day in that month.
EndOfAMonth		Calculate a datetime value representing the last day of the indicated month
EndOfTheYear		Calculate a DateTime value representing the last day of a year, given a date in that year.
EndOfAYear		Calculate a DateTime value representing the last day of a year
StartOfAWeek		Return a day of the week, given a year, week and day in the week.
StartOfTheWeek		Return the first day of the week, given a date.

Example

Program Example30;

{ This program demonstrates the StartOfAMonth function }

Uses SysUtils,DateUtils;

Const
  Fmt = '"First day of this month : "dd mmmm yyyy';
Var
  Y,M : Word;

Begin
  Y:=YearOf(Today);
  M:=MonthOf(Today);
  Writeln(FormatDateTime(Fmt,StartOfAMonth(Y,M)));
End.