I'm getting inconsistent values from Time::Local on two version of perl.

Can anyone explain/repeat the following on the same machine?  The
machine is a:

  SunOS 5.5.1 sun4m sparc SUNW,SPARCstation-20

The older release of perl is version 5.003, and the newest is version
5.004_60.

The script looks like this:

   use Time::Local;
   # March 7, 98, my bday - arbitrary date
   $time = timelocal(0,0,0,7,3,98);


   # Recalculate - except make it the 1st of the month.
   $lt[3] = 1;

   print "  time: $time\ntltime: $tltime\n";

The older version of perl produces:

   0,0,0,7,3,98,2,96,1
     time: 891925200
   tltime: 891403200

And the newer version of perl produces:

   0,0,0,7,3,98,2,96,1
     time: 891925200
   tltime: 891410400

As you can see, timelocal gives different values.  7200 seconds is the
difference, or 2 hours.  This behavior didn't surface in my applications
until recently, and given that it's 2 hours that are involved I am
suspicious of something having to do with daylight savings time.

Any ideas/corroboration would be appreciated.

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