perl -v
This is perl 5, version 24, subversion 0 (v5.24.0) built for MSWin32-x64-multi-thread

>perl -MTime::Piece -wE "say $Time::Piece::VERSION; my $t=Time::Piece->strptime('05/10/1969','%m/%d/%Y'); say $t->ymd; say $t->strftime('%Y-%m-%d')"
1.31
1969-05-10
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