StartOfTheWeek

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

Declaration

Source position: dateutil.inc line 153

  function StartOfTheWeek(const AValue: TDateTime) : TDateTime;

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.

See also

Name	Description
EndOfAMonth	Calculate a TDateTime value representing the last day of the indicated month
EndOfAWeek	Return the last moment of day of the week, given a year and a week in the year.
EndOfAYear	Calculate a TDateTime value representing the last day of a year
EndOfTheMonth	Calculate a TDateTime value representing the last day of the month, given a day in that month.
EndOfTheWeek	Calculate a TDateTime value which represents the end of a week, given a date in that week.
EndOfTheYear	Calculate a TDateTime value representing the last day of a year, given a date in that year.
StartOfAMonth	Return first date of month, given a year/month pair.
StartOfAWeek	Return a day of the week, given a year, week and day in the week.

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.