DateTime::Format::SQLite - Parse and format SQLite dates and times

       Claus Färber <CFAERBER@cpan.org>

       based on "DateTime::Format::MySQL" by David Rolsky.

       Copyright © 2008 Claus Färber.

       Copyright © 2003 David Rolsky.

       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 license can be found in the LICENSE file included with this module.

       This module understands the formats used by SQLite for its "date", "datetime" and "time" functions.  It
       can be used to parse these formats in order to create DateTime objects, and it can take a DateTime object
       and produce a timestring accepted by SQLite.

       NOTE: SQLite does not have real date/time types but stores everything as strings. This module deals with
       the date/time strings as understood/returned by SQLite's "date", "time", "datetime", "julianday" and
       "strftime" SQL functions.  You will usually want to store your dates in one of these formats.

       This class offers the methods listed below.  All of the parsing methods set the returned DateTime
       object's time zone to the UTC zone because SQLite does always uses UTC for date calculations.  This means
       your dates may seem to be one day off if you convert them to local time.

       •   parse_datetime($string)

           Given a $string representing a date, this method will return a new "DateTime" object.

           The  $string  may  be  in  any  of  the  formats  understood  by SQLite's "date", "time", "datetime",
           "julianday" and "strftime" SQL functions or it may be in  the  format  returned  by  these  functions
           (except "strftime", of course).

           The  time  zone  for  this  object  will  always  be  in  UTC because SQLite assumes UTC for all date
           calculations.

           If $string contains no date, the parser assumes 2000-01-01 (just like SQLite).

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

       •   parse_date($string)

       •   parse_time($string)

       •   parse_julianday($string)

           These are aliases for "parse_datetime", for symmetry with "format_*" functions.

       •   format_date($datetime)

           Given a "DateTime" object, this methods returnes a string in the format YYYY-MM-DD, i.e. in the  same
           format SQLite's "date" function uses.

       •   format_time($datetime)

           Given  a  "DateTime"  object, this methods returnes a string in the format HH:MM:SS, i.e. in the same
           format SQLite's "time" function uses.

       •   format_datetime($datetime)

           Given a "DateTime" object, this methods returnes a string in the format YYYY-MM-DD HH:MM:SS, i.e.  in
           the same format SQLite's "datetime" function uses.

       •   format_julianday($datetime)

           Given  a "DateTime" object, this methods returnes a string in the format DDDDDDDDDD, i.e. in the same
           format SQLite's "julianday" function uses.

       DateTime::Format::SQLite - Parse and format SQLite dates and times

http://datetime.perl.org/http://www.sqlite.org/lang_datefunc.html

perl v5.34.0                                       2022-06-13                      DateTime::Format::SQLite(3pm)

         use DateTime::Format::SQLite;

         my $dt = DateTime::Format::SQLite->parse_datetime( '2003-01-16 23:12:01' );

         # 2003-01-16 23:12:01
         DateTime::Format::SQLite->format_datetime($dt);