Пакет perl-Date-Calc: Информация

This package consists of a C library (intended to make life easier for C
developers) and a Perl module to access this library from Perl.

The library provides all sorts of date calculations based on the Gregorian
calendar (the one used in all western countries today), thereby complying
with all relevant norms and standards: ISO/R 2015-1971, DIN 1355 and, to
some extent, ISO 8601 (where applicable).

The package is designed as an efficient (and fast) toolbox, not a bulky
ready-made application. It provides extensive documentation and examples
of use, multi-language support and special functions for business needs.