Calculate the approximate number of seconds between two TDateTime values.
Source position: dateutil.inc line 299
function SecondSpan( |
const ANow: TDateTime; |
const AThen: TDateTime |
):Double; |
ANow |
|
First moment in time. |
AThen |
|
Second moment in time. |
Number (fractions included) of seconds between ANow and AThen.
SecondSpan returns the number of seconds between ANow and AThen, including any fractional parts of a second.
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Calculate the approximate number of years between two TDateTime values. |
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Calculate the approximate number of months between two TDateTime values. |
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Calculate the approximate number of weeks between two TDateTime values. |
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Calculate the approximate number of days between two TDateTime values. |
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Calculate the approximate number of hours between two TDateTime values. |
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Calculate the approximate number of minutes between two TDateTime values. |
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Calculate the approximate number of milliseconds between two TDateTime values. |
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Calculate the number of whole seconds between two TDateTime values. |
Program Example69; { This program demonstrates the SecondSpan function } Uses SysUtils,DateUtils; Procedure Test(ANow,AThen : TDateTime); begin Write('Number of seconds between '); Write(TimeToStr(AThen),' and ',TimeToStr(ANow)); Writeln(' : ',SecondSpan(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.