WithinPastWeeks

Check whether two datetimes are only a number of weeks apart

Declaration

Source position: dateutil.inc line 243

function WithinPastWeeks(

const ANow: TDateTime;

const AThen: TDateTime;

const AWeeks: Integer

):Boolean;

Arguments

`ANow`		First moment in time
`AThen`		Second moment in time
`AWeeks`		Number of weeks to check

Function result

True if ANow and Athen are only AWeeks apart, false otherwise

Description

WithinPastWeeks compares the timestamps ANow and AThen and returns True if the difference between them is at most AWeeks weeks apart, or False if they are further apart.

Remark:

Since this function uses the WeeksBetween function to calculate the difference in Weeks, this means that fractional Weeks do not count, and the fractional part is simply dropped, so for two dates actually 2 and a half weeks apart, the result will also be True

WithinPastYears		Check whether two datetimes are only a number of years apart
WithinPastMonths		Check whether two datetimes are only a number of months apart
WithinPastDays		Check whether two datetimes are only a number of days apart
WithinPastHours		Check whether two datetimes are only a number of hours apart
WithinPastMinutes		Check whether two datetimes are only a number of minutes apart
WithinPastSeconds		Check whether two datetimes are only a number of seconds apart
WithinPastMilliSeconds		Check whether two datetimes are only a number of milliseconds apart

Example

Program Example49;

{ This program demonstrates the WithinPastWeeks function }

Uses SysUtils,DateUtils;

Procedure Test(ANow,AThen : TDateTime; AWeeks : Integer);

begin
 Write(DateToStr(AThen),' and ',DateToStr(ANow));
 Write(' are within ',AWeeks,' weeks: ');
 Writeln(WithinPastWeeks(ANow,AThen,AWeeks));
end;

Var
  D1,D2 : TDateTime;

Begin
  D1:=Today;
  D2:=Today-7;
  Test(D1,D2,1);
  D2:=Today-8;
  Test(D1,D2,1);
  D2:=Today-14;
  Test(D1,D2,1);
  D2:=Today-35;
  Test(D1,D2,5);
  D2:=Today-36;
  Test(D1,D2,5);
  D2:=Today-17;
  Test(D1,D2,1);
  Test(D1,D2,2);
  Test(D1,D2,3);
End.

Notes

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