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    StartOfTheDay

    Calculate the start of the day as a TDateTime value, given a moment in the day.

    Declaration

    Source position: dateutil.inc line 188

    function StartOfTheDay(const AValue: TDateTime) : TDateTime;

    Arguments

    Name Description
    AValue TDateTime from which to calculate start of the day.

    Function result

    Start of the day (00:00) as a TDateTime value.

    Description

    StartOfTheDay extracts the date part of AValue and returns a TDateTime value with the date/time indication of the start (0:0:0.000) of this day.

    See also

    Name Description
    StartOfADay Returns the start of a day as a TDateTime value, given a day indication.
    StartOfTheWeek Return the first day of the week, given a date.
    StartOfAWeek Return a day of the week, given a year, week and day in the week.
    StartOfAMonth Return first date of month, given a year/month pair.
    StartOfTheMonth Calculate the first day of the month, given a date in that month.
    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.
    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.
    EndOftheDay Calculate a TDateTime value that represents the end of a given day.
    EndOfADay Calculates a TDateTime value representing the end of a specified day.

    Example

    Program Example36;

{ This program demonstrates the StartOfTheDay function }

Uses SysUtils,DateUtils;

Const
  Fmt = '"Start of the day : "dd mmmm yyyy hh:nn:ss';


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