1DateTime::Format::DateMUasneirp(C3o)ntributed Perl DocumDeantteaTtiimoen::Format::DateManip(3)
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4

NAME

6       DateTime::Format::DateManip - Perl DateTime extension to convert
7       Date::Manip dates and durations to DateTimes and vice versa.
8

SYNOPSIS

10         use Date::Manip;
11         use DateTime::Format::DateManip;
12
13         # Date::Manip to DateTime
14         my $dm = ParseDate("January 1st, 2001");
15         my $dt = DateTime::Format::DateManip->parse_datetime($dm);
16
17         $dt->add( weeks => 1 );
18
19         # And back again
20         my $dm2 = DateTime::Format::DateManip->format_datetime($dt);
21
22         # Same thing with a duration
23         my $dm_delta  = ParseDateDelta("3 years 2 days -4 hours +3mn -2 second");
24         my $dt_dur    = DateTime::Format::DateManip->parse_duration($dm_delta);
25         my $dm_delta2 = DateTime::Format::DateManip->format_duration($dt_dur);
26
27         # Note that we can parse any string that is in the appropriate format
28         # there is no need to call ParseDate or ParseDateDelta first:
29         my $dt2     = DateTime::Format::DateManip->parse_datetime("In 2 hours");
30         my $dt_dur2 = DateTime::Format::DateManip->parse_duration("3 years");
31

DESCRIPTION

33       DateTime::Format::DateManip is a class that knows how to convert
34       between "Date::Manip" dates and durations and "DateTime" and
35       "DateTime::Duration" objects.  Recurrences are note yet supported.
36

USAGE

38   Time Zones
39       "Date::Manip" can have a time zone set globally and it keeps the dates
40       it produces in the local time.  In all cases we rely on the GMT offset
41       to set up the "DateTime" object.  However, we try to work out what the
42       matching timezone is using the "DateTime" nomenclature and create the
43       object in the correct time zone so the date is correct if dajustments
44       to the date object pushes it over a DST change.  Note that we call
45       "set_time_zone" to make the change, so the absolute time is not
46       affected by the time zone change.
47
48       However, not all "Date::Manip" time zones have reasonable mappings (for
49       example NT and CAT both appear to be obsolete).  It is unlikely that a
50       user will have their time zone set to one of these items.  If we are
51       unable to work out the mapping we simply use the GMT offset and do not
52       set a timezone.
53
54       When converting to a "Date::Manip" we only need to tell "Date::Manip"
55       the GMT offset and it will automatically convert to the local time zone
56       that is in effect.
57
58   Class Methods
59       ·   parse_datetime( $date_manip_string )
60
61           This method takes the input string and returns the corresponding
62           "DateTime" object.  If "Date::Manip::ParseDate" was unable to parse
63           the input string then undef will be returned.  See the note above
64           about Time Zones.
65
66       ·   format_datetime( $datetime_object )
67
68           This method takes the given "DateTime" object and returns a
69           corresponding "Date::Manip::ParseDate" parseable string.  See the
70           note above about Time Zones.
71
72       ·   parse_duration( $date_manip_duration_string )
73
74           This method takes the giben duration string and returns the
75           corresponding "DateTime::Duration" object.  If
76           "Date::Manip::ParseDateDelta" was unable to parse the input string
77           then undef will be returned.
78
79       ·   format_duration( $datetime_duration_object )
80
81           This method takes the given "DateTime::Duration" object and returns
82           a corresponding "Date::Manip::ParseDateDelta" parseable string.
83

AUTHOR

85       Ben Bennett <fiji at limey dot net>
86

88       Copyright (c) 2003 Ben Bennett.  All rights reserved.  This program is
89       free software; you can redistribute it and/or modify it under the same
90       terms as Perl itself.
91
92       Portions of the code in this distribution are derived from other works.
93       Please see the CREDITS file for more details.
94
95       The full text of the license can be found in the LICENSE file included
96       with this module.
97

SEE ALSO

99       datetime@perl.org mailing list
100
101       http://datetime.perl.org/
102
103
104
105perl v5.30.1                      2020-01-29    DateTime::Format::DateManip(3)
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