I filed this bug on DateTime::Format::Pg about a month ago but I'm not sure Claus saw it.
http://rt.cpan.org/NoAuth/Bug.html?id=8516 Basically, it looks like the internal subroutine _fix_second() is missing from the module. When it gets called as part of the public parse_time() method, kablooey! I'd supply a patch, but I'm at a loss as to what it was supposed to do. So Claus, are you out there somewhere? If not, can anyone tell me what _fix_second() was probably supposed to do? -John