perl-Date-Calc: perl-Date-Calc (Date::Calc) perl-Date-Calc: perl-Date-Calc: perl-Date-Calc provides Gregorian calendar date calculations. perl-Date-Calc: perl-Date-Calc: Homepage: https://metacpan.org/release/Date-Calc perl-Date-Calc: perl-Date-Calc: perl-Date-Calc: perl-Date-Calc: perl-Date-Calc: perl-Date-Calc: