StartOfTheWeek

Return the first day of the week, given a date.

Declaration

Source position: dateutil.inc line 152

function StartOfTheWeek(

const AValue: TDateTime

):TDateTime;

Arguments

AValue

Day in the week.

Function result

First day of the week, in TDateTime format.

Description

StartOfTheWeek extracts the year and week parts of AValue and returns a TDateTime value with the date of the first day of that week as the StartOfAWeek function.

StartOfAWeek		Return a day of the week, given a year, week and day in the week.
EndOfTheWeek		Calculate a DateTime value which represents the end of a week, given a date in that week.
EndOfAWeek		Return the last moment of day of the week, given a year and a week in the year.
StartOfAMonth		Return first date of month, given a year/month pair.
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
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

Example

Program Example32;

{ This program demonstrates the StartOfTheWeek function }

Uses SysUtils,DateUtils;

Const
  Fmt = '"First day of this week : "dd mmmm yyyy';

Begin
  Writeln(FormatDateTime(Fmt,StartOfTheWeek(Today)));
End.