🚀 go-pugleaf

I am seeking help solving a problem, I will at the outset own up to it
being a homework-help problem, but would add that the answer to this
does represent only a *very* small part of the task that I have to
complete!
Using FST Modula-2 I need to write, as a small part of an assignment, a
timer that takes as a starting point the number of seconds that have
elapsed since midnight.
This would entail storing a value <= 86400.
The GetTime procedure returns CARDINAL values for - minutes since
midnight and milliseconds past the minute.
I intended to use the following:
MyTime := GetTime((SysTime.minutes)*60)+(SysTime.millisec)/1000));
However the result produced can be a value that requires a LONGCARD for
storage.
I have to date not been able to get the result into a VAR declared AS
LONGCARD. I have tried LONG(..) to no avail.
Have I missed something basic? A CARDINAL is stored in 2 bytes and a
LONGCARD in 4 bytes so why is there not a procedure to convert?
My tutor for this subject is not available for several days, none of my
text books offer an answer, so any help would be much appreciated.
regards
-- 
Steve Perry
email steve@suko.demon.co.uk
fax   By voice first please