[Overview][Constants][Procedures and functions][Index] | Reference for unit 'dateutils' (#rtl)

# WithinPastMinutes

Check whether two datetimes 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;`

## Arguments

`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

WithinPastYears |  | Check whether two datetimes are only a number of years apart
WithinPastMonths |  | Check whether two datetimes are only a number of months apart
WithinPastWeeks |  | Check whether two datetimes are only a number of weeks 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
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 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.

Documentation generated on: Feb 26 2014