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DateTime::Format::W3CDTF - Parse and format W3CDTF datetime strings


This document describes DateTime::Format::W3CDTF version 0.08


  use DateTime::Format::W3CDTF;

  my $w3c = DateTime::Format::W3CDTF->new(strict => 1);
  my $dt = $w3c->parse_datetime( '2003-02-15T13:50:05-05:00' );

  # 2003-02-15T13:50:05-05:00


This module understands the W3CDTF date/time format, an ISO 8601 profile, defined at This format as the native date format of RSS 1.0.

It can be used to parse these formats in order to create the appropriate objects.


This API is currently experimental and may change in the future.

  • new()

    Returns a new W3CDTF parser object. Accepts a single strict option:

      DateTime::Format::W3CDTF->new(strict => 1);

    If true, parse_datetime() and format_datetime() will only accept and return strings in W3CDTF format, respectively. In particular, the W3CDTF format requires all time components to have timezones.

    If false, timezones are optional.

  • parse_datetime($string)

    Given a W3CDTF datetime string, this method will return a new DateTime object.

    If given an improperly formatted string, this method may die.

  • format_datetime($datetime)

    Given a DateTime object, this methods returns a W3CDTF datetime string.

    NOTE: As of version 0.4, format_datetime no longer attempts to truncate datetimes without a time component. This is due to the fact that DateTime doesn't distinguish between a date with no time component, and midnight.

  • format_date($datetime)

    Given a DateTime object, return a W3CDTF datetime string without the time component.


Support for this module is provided via the email list. See for details.

Please submit bugs to the CPAN RT system at or via email at


Dave Rolsky <>


This module is maintained by Gregory Todd Williams <>. It was originally created by Kellan Elliott-McCrea <>.

This module was inspired by DateTime::Format::ICal


Copyright (c) 2009 David Rolsky. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Copyright (c) 2003 Kellan Elliott-McCrea

Portions of the code in this distribution are derived from other works. Please see the CREDITS file for more details.

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

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