Added the two lines below:

        while ($min > 59 ) { $min-- } ;
        while ($sec > 59 ) { $sec-- } ;

This check was required because I would sometimes receive mail that had either the second and/or the minute set to the value "60", which was rejected as invalid by the timegm() function.

Prior to passing $min or $sec to the timegm() function, this code now ensures that any value greater than 59 is decrimented to a legal value.

This has fixed the crashes that were occuring on our production systems.

Potentially $hr could also be checked for values greater than 23, but I did not impliment or test this additional change.