# phpman > perldoc > DateTime::Types

## NAME
    [DateTime::Types](https://www.chedong.com/phpMan.php/perldoc/DateTime%3A%3ATypes/markdown) - Types used for parameter checking in DateTime

## VERSION
    version 1.55

## DESCRIPTION
    This module has no user-facing parts.

## SUPPORT
    Bugs may be submitted at <<https://github.com/houseabsolute/DateTime.pm/issues>>.

    There is a mailing list available for users of this distribution, <mailto:<datetime@perl.org>>.

## SOURCE
    The source code repository for DateTime can be found at
    <<https://github.com/houseabsolute/DateTime.pm>>.

## AUTHOR
    Dave Rolsky <<autarch@urth.org>>

## COPYRIGHT AND LICENSE
    This software is Copyright (c) 2003 - 2021 by Dave Rolsky.

    This is free software, licensed under:

      The Artistic License 2.0 (GPL Compatible)

    The full text of the license can be found in the LICENSE file included with this distribution.