DateTime::Format::ISO8601 - Parses ISO8601 formats use DateTime::Format::ISO8601; my $dt = DateTime::Format::ISO8601->parse_datetime( $str ); my $dt = DateTime::Format::ISO8601->parse_time( $str ); or my $iso8601 = DateTime::Format::ISO8601->new; my $dt = $iso8601->parse_datetime( $str ); my $dt = $iso8601->parse_time( $str ); Parses almost all ISO8601 date and time formats. ISO8601 time-intervals will be supported in a later release.

Import Parameters
This module accepts no arguments to it's "import" method.

Methods
Constructors Accepts an optional hash. my $iso8601 = DateTime::Format::ISO8601->new( base_datetime => $dt, cut_off_year => 42, legacy_year => 1, ); A "DateTime" object that will be used to fill in missing information from incomplete date/time formats. This key is optional. A integer representing the cut-off point between interpreting 2-digits years as 19xx or 20xx. 2-digit years < legacy_year will be interpreted as 20xx 2-digit years >= legacy_year will be untreated as 19xx This key defaults to the value of "DefaultCutOffYear". A boolean value controlling if a 2-digit year is interpreted as being in the current century (unless a "base_datetime" is set) or if "cut_off_year" should be used to place the year in either 20xx or 19xx. This key defaults to the value of "DefaultLegacyYear". Returns a replica of the given object. Object Methods Returns a "DateTime" object if a "base_datetime" has been set. Accepts a "DateTime" object that will be used to fill in missing information from incomplete date/time formats. Returns a integer representing the cut-off point between interpreting 2-digits years as 19xx or 20xx. Accepts a integer representing the cut-off point between interpreting 2-digits years as 19xx or 20xx. 2-digit years < legacy_year will be interpreted as 20xx 2-digit years >= legacy_year will be interpreted as 19xx Returns a boolean value indicating the 2-digit year handling behavior. Accepts a boolean value controlling if a 2-digit year is interpreted as being in the current century (unless a "base_datetime" is set) or if "cut_off_year" should be used to place the year in either 20xx or 19xx. Class Methods Accepts a integer representing the cut-off point for 2-digit years when calling "parse_*" as class methods and the default value for "cut_off_year" when creating objects. If called with no parameters this method will return the default value for "cut_off_year". Accepts a boolean value controlling the legacy year behavior when calling "parse_*" as class methods and the default value for "legacy_year" when creating objects. If called with no parameters this method will return the default value for "legacy_year". Parser(s) These may be called as either class or object methods. Please see the "FORMATS" section. There are 6 string that can match against date only or time only formats. The "parse_datetime" method will attempt to match these ambiguous strings against date only formats. If you want to match against the time only formats see the "parse_time" method.

Conventions
These formats are supported with exactly 6 digits for the year. Support for a variable number of digits will be in a later release. If a format doesn't include a year all larger time unit up to and including the year are filled in using the current date/time or [if set] the "base_datetime" object. There is no limit on the expressed precision.

Supported via parse_datetime
The supported formats are listed by the section of ISO 8601:2000(E) in which they appear. 5.2 Dates 5.2.1.1 YYYYMMDD YYYY-MM-DD 5.2.1.2 YYYY-MM YYYY YY 5.2.1.3 YYMMDD YY-MM-DD -YYMM -YY-MM -YY --MMDD --MM-DD --MM ---DD 5.2.1.4 +[YY]YYYYMMDD +[YY]YYYY-MM-DD +[YY]YYYY-MM +[YY]YYYY +[YY]YY 5.2.2.1 YYYYDDD YYYY-DDD 5.2.2.2 YYDDD YY-DDD -DDD 5.2.2.3 +[YY]YYYYDDD +[YY]YYYY-DDD 5.3.2.1 YYYYWwwD YYYY-Www-D 5.2.3.2 YYYYWww YYYY-Www YYWwwD YY-Www-D YYWww YY-Www -YWwwD -Y-Www-D -YWww -Y-Www -WwwD -Www-D -Www -W-D 5.2.3.4 +[YY]YYYYWwwD +[YY]YYYY-Www-D +[YY]YYYYWww +[YY]YYYY-Www 5.3 Time of Day 5.3.1.1 - 5.3.1.3 optionally prefixed with 'T' 5.3.1.1 hh:mm:ss 5.3.1.2 hh:mm 5.3.1.3 - 5.3.1.4 fractional (decimal) separator maybe either ',' or '.' 5.3.1.3 hhmmss,ss hh:mm:ss,ss hhmm,mm hh:mm,mm hh,hh 5.3.1.4 -mm:ss -mmss,s -mm:ss,s -mm,m --ss,s 5.3.3 - 5.3.4.2 optionally prefixed with 'T' 5.3.3 hhmmssZ hh:mm:ssZ hhmmZ hh:mmZ hhZ hhmmss.ssZ hh:mm:ss.ssZ 5.3.4.2 hhmmss[+-]hhmm hh:mm:ss[+-]hh:mm hhmmss[+-]hh hh:mm:ss[+-]hh hhmmss.ss[+-]hhmm hh:mm:ss.ss[+-]hh:mm 5.4 Combinations of date and time of day 5.4.1 YYYYMMDDThhmmss YYYY-MM-DDThh:mm:ss YYYYMMDDThhmmssZ YYYY-MM-DDThh:mm:ssZ YYYYMMDDThhmmss[+-]hhmm YYYY-MM-DDThh:mm:ss[+-]hh:mm YYYYMMDDThhmmss[+-]hh YYYY-MM-DDThh:mm:ss[+-]hh 5.4.2 YYYYMMDDThhmmss.ss YYYY-MM-DDThh:mm:ss.ss YYYYMMDDThhmmss.ss[+-]hhmm YYYY-MM-DDThh:mm:ss.ss[+-]hh:mm Support for this section is not complete. YYYYMMDDThhmm YYYY-MM-DDThh:mm YYYYDDDThhmmZ YYYY-DDDThh:mmZ YYYYWwwDThhmm[+-]hhmm YYYY-Www-DThh:mm[+-]hh 5.5 Time-Intervals Will be supported in a later release.

Supported via parse_time
5.3.1.1 - 5.3.1.3 optionally prefixed with 'T' 5.3.1.1 hhmmss 5.3.1.2 hhmm hh 5.3.1.4 -mmss -mm --ss

Title
ISO8601:2000(E) Data elements and interchange formats - information exchange - Representation of dates and times Second edition 2000-12-15

Reference Number
ISO/TC 154 N 362 Iain 'Spoon' Truskett (SPOON) who wrote DateTime::Format::Builder. That has grown into The Vacuum Energy Powered "Swiss Army" Katana of date and time parsing. This module was inspired by and conceived in honor of Iain's work. Tom Phoenix (PHOENIX) and PDX.pm for helping me solve the ISO week conversion bug. Not by fixing the code but motivation me to fix it so I could participate in a game of "Zendo". Jonathan Leffler (JOHNL) for reporting a test bug. Kelly McCauley for a patch to add 8 missing formats. Alasdair Allan (AALLAN) for complaining about excessive test execution time. Everyone at the DateTime "Asylum". Support for this module is provided via the <datetime@perl.org> email list. See <http://lists.perl.org/> for more details. Joshua Hoblitt <jhoblitt@cpan.org> Copyright (c) 2003-2005 Joshua Hoblitt. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the licenses can be found in the LICENSE file included with this module, or in perlartistic and perlgpl as supplied with Perl 5.8.1 and later. DateTime, DateTime::Format::Builder, <http://datetime.perl.org/>