/usr/share/perl5/DateTime/ is in libdatetime-format-builder-perl 0.8000-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/DateTime/Format/
/usr/share/perl5/DateTime/Format/Builder/
/usr/share/perl5/DateTime/Format/Builder.pm
/usr/share/perl5/DateTime/Format/Builder.pod
/usr/share/perl5/DateTime/Format/Builder/Parser/
/usr/share/perl5/DateTime/Format/Builder/Parser.pm
/usr/share/perl5/DateTime/Format/Builder/Parser/Dispatch.pm
/usr/share/perl5/DateTime/Format/Builder/Parser/Quick.pm
/usr/share/perl5/DateTime/Format/Builder/Parser/Regex.pm
/usr/share/perl5/DateTime/Format/Builder/Parser/Strptime.pm
/usr/share/perl5/DateTime/Format/Builder/Parser/generic.pm
/usr/share/perl5/DateTime/Format/Builder/Tutorial.pod