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.