WithinPastMinutes¶

Check whether two TDateTimes are only a number of minutes apart.

Declaration¶

Source position: dateutil.inc line 271

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

Arguments¶

Name	Description
ANow	First moment in time.
AThen	Second moment in time.
AMinutes	Number of minutes to check.

Function result¶

True if ANow and Athen are only AMinutes apart, false otherwise.

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