This module provides functions that are the inverse of built-in perl functions localtime() and gmtime(). They accept a date as a six-element array, and return the corresponding time(2) value in seconds since the system epoch.

The Digest::MD4 module allows you to use the RSA Data Security Inc.: MD4 Message Digest algorithm from within Perl programs. The algorithm takes as input a message of arbitrary length and produces as output a 128-bit "fingerprint" or "message digest" of the input. MD4 is described in RFC 1320.

DateTime is a class for the representation of date/time combinations. It represents the Gregorian calendar, extended backwards in time before its creation (in 1582).

The DateTime::Locale modules provide localization data for the DateTime.pm class.

This module is meant as a debugging aid. It can be used to make a script complain loudly with stack backtraces when warn()-ing or die()ing.

IO::All combines all of the best Perl IO modules into a single nifty object oriented interface to greatly simplify your everyday Perl IO idioms. It exports a single function called io, which returns a new IO::All object. And that object can do it all!

Sometimes you need to test what happens when a given module is not installed. This module provides a way of temporarily hiding installed modules from perl's require mechanism. The Module::Mask object adds itself to @INC and blocks require calls to restricted modules.

This module provides tools to deal with International Standard Music Numbers.

ExtUtils::CppGuess attempts to guess the C++ compiler that is compatible with the C compiler used to build perl.

Clipboard provides functionality to copy and paste with any OS.

Params::Util provides a basic set of importable functions that makes checking parameters easier.

This module builds on MooseX::Types::DateTime to add additional custom types and coercions. Since it builds on an existing type, all coercions and constraints are inherited.

Capture::Tiny provides a simple, portable way to capture almost anything sent to STDOUT or STDERR, regardless of whether it comes from Perl, from XS code or from an external program. Optionally, output can be teed so that it is captured while being passed through to the original file handles.

This package provides some basic statistics on numerical vectors. All the subroutines can take a reference to the vector to be operated on.

Module::Install is a package for writing installers for CPAN (or CPAN-like) distributions that are clean, simple, minimalist, act in a strictly correct manner with ExtUtils::MakeMaker, and will run on any Perl installation version 5.005 or newer.

Text::CSV_XS provides facilities for the composition and decomposition of comma-separated values. An instance of the Text::CSV_XS class will combine fields into a CSV string and parse a CSV string into fields. The module accepts either strings or files as input and support the use of user-specified characters for delimiters, separators, and escapes.

Term::ANSIColor provides constants and simple functions for setting ANSI text attributes, most notably colors. It can be used to set the current text attributes or to apply a set of attributes to a string and reset the current text attributes at the end of that string. Eight-color, sixteen-color, 256-color, and true color (24-bit color) escape sequences are all supported.

This Perl library provides a function which tells whether a specific time falls within a specified time period. Its syntax for specifying time periods allows you to test for conditions like "Monday to Friday, 9am till 5pm" and "on the second Tuesday of the month" and "between 4pm and 4:15pm" and "in the first half of each minute" and "in January of 1998".

This module implements most of `strptime(3)`, the POSIX function that is the reverse of `strftime(3)`, for `DateTime`. While `strftime` takes a `DateTime` and a pattern and returns a string, `strptime` takes a string and a pattern and returns the `DateTime` object associated.

Term::Encoding is a simple module to detect the encoding of the current terminal expects in various ways.

Tie::Hash::Method provides a way to create a tied hash with specific overridden behaviour without having to create a new class to do it. A tied hash with no methods overridden is functionally equivalent to a normal hash.

Assigns a new name to referenced sub. If package specification is omitted in the name, then the current package is used. The return value is the sub.

This module provides functions for expressing durations in rounded or exact terms.

The Devel::StackTrace module contains two classes, Devel::StackTrace and Devel::StackTrace::Frame. These objects encapsulate the information that can be retrieved via Perl's caller() function, as well as providing a simple interface to this data.