NAME

       Weather::Com::DateTime - date and time class

SYNOPSIS

         #!/usr/bin/perl -w
         use Weather::Com::DateTime;

         my $gmt_offset = 1; # e.g. for Germany in winter
         my $datetime = Weather::Com::DateTime->new($gmt_offset);
         $datetime->set_lsup('02/25/05 11:21 PM Local Time');

         print "This is the date '02/25/05 11:21 PM' in Germany:\n";
         print "Epoc:                    ", $datetime->epoc(), "\n";
         print "GMT (UTC):               ". gmtime($datetime->epoc()). "\n";
         print "My local time:           ". localtime($datetime->epoc()). "\n";
         print "And finally German time: ", $datetime->time(), " o'clock at ",
               $datetime->date(), "\n\n";

DESCRIPTION

       Weather::Com::DateTime objects are used to encapsulate a date or time provided by the OO
       interface (e.g. localtime, sunrise, sunset, etc.).

       This is done because there are many ways to use a date or time and to present it in your
       programs using Weather::Com. This class provides some predefined formats for date and time
       but also enables you to easily define your own ones.

       These objects always represent the local time of a Weather::Com::Location object. That is,
       if you have a location object for New York City and your server running the weather script
       is located in Los Angeles, for example, this line

         print "Sunrise at: ", $location->sunrise()->time(), "\n";

       will print the time of sunrise (in 24h format) in EST and not corresponding to the
       timezone of Los Angeles! If you'd like to now what this is in GMT you could call

         print "Sunrise at: ". gmtime($location->sunrise()->epoc()). "\n";

       or if you want to know when the sun rises at the location in your servers local time than
       just call

         print "Sunrise at: ". localtime($location->sunrise()->epoc()). "\n";

       There are two ways to get your own date or time format:

       1.  You use the "formatted()" method and provide a format string to it.

       2.  If you'd like to define your own "date()" or "time()" method, simply change the
           corresponding methods.

           What you can change in which way without destroying the whole class, is described in
           section INTERFACE.

CONSTRUCTOR

       You usually would not construct an object of this class yourself.  This is implicitely
       done when you call one of the OO interfaces date or time methods.

       The constructor can take a GMT offset in positive or negative hours.

       If one calls the constructor without any GMT offset, we assume you want a GMT object.

METHODS

       epoc(epoc seconds)

       With this method you can set the date and time using epocs (GMT) directly.

       It returns the currently set epoc seconds (GMT).

       formatted(format)

       This method returns a date or time formatted in the way you ask for and corresponding to
       the local time of the parent object.

       The "format" you provide to this method has to be a valid Time::Format format. For details
       please refer to Time::Format.

       set_date(date)

       With this method one can set the date of the object using an input format like "Feb 13"
       which is the 13th of february of the current year.

       Using this method, the time is set to 00:00. The year is the current one.

       set_time(time)

       With this method one can set the time of the object using an input format like "8:30 AM".

       The date is set to the current date of the host the script is running on.

       set_lsup(lsup)

       With this method one can set the date of the object using the weather.com's special last
       update format that is like "2/12/05 4:50 PM Local Time".

       date()

       Returns the date in the format "1. February 2005".

       time()

       Returns the time in the format "22:15".

       time_ampm()

       Returns the time in the format "10:15 PM".

       weekday()

       Returns the day of week with like "Wednesday".

       day()

       Returns the day in month.

       month()

       Returns the name of the month.

       mon()

       Returns the number of the month

       year()

       Returns the year (4 digits).

AUTHOR

       Thomas Schnuecker, <thomas@schnuecker.de>

COPYRIGHT AND LICENSE

       Copyright (C) 2004-2007 by Thomas Schnuecker

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

       The data provided by weather.com and made accessible by this OO interface can be used for
       free under special terms.  Please have a look at the application programming guide of
       weather.com (<http://www.weather.com/services/xmloap.html>)!