libdatetime-perl - 2:1.59-1 main

DateTime is a Perl module which aims to provide a complete, correct, and easy
to use date/time object implementation. It provides an easy way to manipulate
dates and times, including date calculations (even addition and subtraction)
and provides convenient methods for extracting or modifying portions of any
date or time.
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This module supports the Olson time zone database, meaning that historical
time zone information, and more importantly, daylight saving time rules, can
be handled transparently, simply by setting the correct time zone. This is
done by using the DateTime::TimeZone module.