03-24-2010
PHP function for Time Zone conversion
I recently found that PHP doesn't have an inbuilt function for conversion of time/date between multiple time zones and neither could I find a third-party function for the purpose. However, I did find the PEAR class which has inbuilt support for multiple time-zones but it cannot be used by "including" itself in the php page. PEAR class can be used only after installation, which may not be feasible in each and every case.
To avoid the hassles of installation I have written a set of 3 functions in PHP which wil allows you to -
1.
Convert GMT to local time zone
2. Convert local time zone to GMT
3. Convert between two different time zones.
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LEARN ABOUT CENTOS
datetime::format::dateparse
DateTime::Format::DateParse(3) User Contributed Perl Documentation DateTime::Format::DateParse(3)
NAME
DateTime::Format::DateParse - Parses Date::Parse compatible formats
SYNOPSIS
use DateTime::Format::DateParse;
my $dt = DateTime::Format::DateParse->parse_datetime( $date );
my $dt = DateTime::Format::DateParse->parse_datetime( $date, $zone );
DESCRIPTION
This module is a compatibility wrapper around Date::Parse.
USAGE
Import Parameters
This module accepts no arguments to it's "import" method and exports no symbols.
Methods
Class Methods
o parse_datetime($date [, $zone])
Accepts a Date::Parse compatible $date string and optionally a Time::Zone compatible $zone string.
Returns a DateTime object.
GOTCHAS
o If parse_datetime is called on a $date that doesn't know specify a timezone and $zone is not set, then the timezone of the returned
DateTime object will be set to the "local" timezone. This is consistent with the behavior of Date::Parse.
o If parse_datetime is called without a $zone but the $date string does specify a timezone/offset or if parse_datetime is called with a
$zone that DateTime::TimeZone does not understand, the returned DateTime object will have it's timezone set to a fixed offset from UTC.
This means that "DST" information is not available and date math will not reflect "DST" transitions. This may be resolved for true
timezones by using the DateTime::TimeZone::Alias module to "alias" the Time::Zone timezone to an Olson DB name. This may be done
automatically in a future release.
CREDITS
Graham Barr (GBARR) <gbarr@pobox.com>, author of Date::Parse
Everyone at the DateTime "Asylum".
SUPPORT
Support for this module is provided via the <datetime@perl.org> email list. See <http://lists.perl.org/> for more details.
AUTHOR
Joshua Hoblitt (JHOBLITT) <jhoblitt@cpan.org>
COPYRIGHT
Copyright (c) 2005-6 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.
SEE ALSO
Date::Parse, Time::Zone, DateTime, DateTime::TimeZone, DateTime::TimeZone::Alias, <http://datetime.perl.org/>
perl v5.16.3 2014-06-10 DateTime::Format::DateParse(3)