SecondsBetween¶

Calculate the number of whole seconds between two TDateTime values.

Declaration¶

Source position: dateutil.inc line 285

function SecondsBetween(const ANow: TDateTime; const AThen: TDateTime)
                        : Int64;

Arguments¶

Name	Description
ANow	First moment in time.
AThen	Second moment in time.

Function result¶

Number of seconds between ANow and AThen.

Description¶

SecondsBetween returns the number of whole seconds between ANow and AThen. This means the fractional part of a second (milliseconds etc.) is dropped.

See also¶

Name	Description
YearsBetween	Calculate the number of whole years between two TDateTime values.
MonthsBetween	Calculate the number of whole months between two TDateTime values.
WeeksBetween	Calculate the number of whole weeks between two TDateTime values.
DaysBetween	Number of whole days between two TDateTime values.
HoursBetween	Calculate the number of whole hours between two TDateTime values.
MinutesBetween	Calculate the number of whole minutes between two TDateTime values.
MilliSecondsBetween	Calculate the number of whole milliseconds between two TDateTime values.

Example¶

Program Example61;

{ This program demonstrates the SecondsBetween function }

Uses SysUtils,DateUtils;

Procedure Test(ANow,AThen : TDateTime);

begin
 Write('Number of seconds between ');
 Write(TimeToStr(AThen),' and ',TimeToStr(ANow));
 Writeln(' : ',SecondsBetween(ANow,AThen));
end;

Var
  D1,D2 : TDateTime;

Begin
  D1:=Now;
  D2:=D1-(999*OneMilliSecond);
  Test(D1,D2);
  D2:=D1-(1001*OneMilliSecond);
  Test(D1,D2);
  D2:=D1-(2001*OneMilliSecond);
  Test(D1,D2);
  D2:=D1-(5001*OneMilliSecond);
  Test(D1,D2);
  D2:=D1-(5.4*OneSecond);
  Test(D1,D2);
  D2:=D1-(2.5*OneSecond);
  Test(D1,D2);
End.