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    StartOfTheWeek

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

    Declaration

    Source position: dateutil.inc line 176

    function StartOfTheWeek(const AValue: TDateTime) : TDateTime;

    Arguments

    Name Description
    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.

    See also

    Name Description
    StartOfAWeek Return a day of the week, given a year, week and day in the week.
    EndOfTheWeek Calculate a TDateTime 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 TDateTime value representing the last day of a year, given a date in that 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.
    EndOfAMonth Calculate a TDateTime 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.