/usr/share/zoneinfo/posix/SystemV/PST8 is in tzdata 2012b-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/zoneinfo/posix/SystemV/../../Pacific/Pitcairn
/usr/share/zoneinfo/posix/SystemV/../../Pacific/Pitcairn