It's a different failure mode, but it's still failing by returning the date for -1 instead of returning undef.

I imagine that some of the work in this area is done by the underlying C library, so you can expect differences between systems.

I believe that might also be changed in 5.12 to avoid the year 2038 overflow.

Update: Confirmed:

$ /usr/bin/perl -le'print scalar localtime "201003031234"'
Wed Dec 31 18:59:59 1969

$ ./perl -le'print scalar localtime "201003031234"'
Fri Jul 14 19:20:34 8339
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