Return the difference between 2 times in seconds
|Result||*Result (Optional)||Integer||Resulting number|
|Object||*Input (Optional)||Time||Time to be compared to|
Difference returns the number of seconds between the Object time and the subject.
In this example, if #Now is 12:34:56 and #Then is 10:34:56, the result would be 7200 i.e 2 hours later.
#Result := #Now.Difference(#Then)
If the parameters were reversed, the result would be -7200 i.e. 2 hours before
LANSA Version 15, April 2020