WithinPastMinutes

Check whether two TDateTimes are only a number of minutes apart

Declaration

Source position: dateutil.inc line 248

  function WithinPastMinutes(const ANow: TDateTime; 
                            const AThen: TDateTime; const AMinutes: Int64)
                             : Boolean;

Description

WithinPastMinutes compares the timestamps ANow and AThen and returns True if the difference between them is at most AMinutes minutes apart, or False if they are further apart.

Remark

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

See also

Name	Description
WithinPastDays	Check whether two TDateTimes are only a number of days apart
WithinPastHours	Check whether two TDateTimes are only a number of hours apart
WithinPastMilliSeconds	Check whether two TDateTimes are only a number of milliseconds apart
WithinPastMonths	Check whether two TDateTimes are only a number of months apart
WithinPastSeconds	Check whether two TDateTimes are only a number of seconds apart
WithinPastWeeks	Check whether two TDateTimes are only a number of weeks apart
WithinPastYears	Check whether two TDateTimes are only a number of years apart

Example

Program Example52;
{ This program demonstrates the WithinPastMinutes function }
Uses SysUtils,DateUtils;
Procedure Test(ANow,AThen : TDateTime; AMinutes : Integer);
begin
 Write(DateTimeToStr(AThen),' and ',DateTimeToStr(ANow));
 Write(' are within ',AMinutes,' Minutes: ');
 Writeln(WithinPastMinutes(ANow,AThen,AMinutes));
end;
Var
  D1,D2 : TDateTime;
Begin
  D1:=Now;
  D2:=D1-(59*OneSecond);
  Test(D1,D2,1);
  D2:=D1-(61*OneSecond);
  Test(D1,D2,1);
  D2:=D1-(122*OneSecond);
  Test(D1,D2,1);
  D2:=D1-(306*OneSecond);
  Test(D1,D2,5);
  D2:=D1-(5.4*OneMinute);
  Test(D1,D2,5);
  D2:=D1-(2.5*OneMinute);
  Test(D1,D2,1);
  Test(D1,D2,2);
  Test(D1,D2,3);
End.