EndOfADay

Calculates a TDateTime value representing the end of a specified day

Declaration

Source position: dateutil.inc line 169

  function EndOfADay(const AYear: Word; const AMonth: Word; 
                    const ADay: Word) : TDateTime;  Overload;
  function EndOfADay(const AYear: Word; const ADayOfYear: Word)
                     : TDateTime;  Overload;

Description

EndOfADay returns a TDateTime value with the date/time indication of the last moment (23:59:59.999) of the day given by AYear, AMonth, ADay.

The day may also be indicated with a AYear, ADayOfYear pair.

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
EndOfTheDay Calculate a TDateTime value that represents the end of a given day.
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.
StartOfADay Return the start of a day as a TDateTime value, given a day indication
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.
StartOfTheDay Calculate the start of the day as a TDateTime value, given a moment in the day.
StartOfTheMonth Calculate the first day of the month, given a date in that month.
StartOfTheWeek Return the first day of the week, given a date.

Example

Program Example39;
{ This program demonstrates the EndOfADay function }
Uses SysUtils,DateUtils;
Const
  Fmt = '"End of the day : "dd mmmm yyyy hh:nn:ss';
Var
  Y,M,D : Word;
Begin
  Y:=YearOf(Today);
  M:=MonthOf(Today);
  D:=DayOf(Today);
  Writeln(FormatDateTime(Fmt,EndOfADay(Y,M,D)));
  DecodeDateDay(Today,Y,D);
  Writeln(FormatDateTime(Fmt,EndOfADay(Y,D)));
End.