/ 
Time-Local-Extended-0.51
River stage zero No dependents
/ Time::Local::Extended

NAME

Time::Local::Extended - Increase the range of localtime and timelocal

SYNOPSIS

use Time::Local::Extended qw(:ALL);

my @localtime   = localtime(2**31);
my $seconds     = timelocal(0,0,0,1,10,170);
my $gmt_seconds = timegm(0,0,0,1,10,170);
my $gmt_time    = gmtime(2**31);
my $ux_time     = UNIX_TIMESTAMP('2097-07-04 12:34:56');
my $date        = FROM_UNIXTIME(2**31);

my $sql = qq(
       SELECT start_time
       FROM   project
       WHERE  id = 1
);
my $date_time = $dbh->selectrow_array($sql); # '2097-07-04 12:34:56'
my $ux_time   = UNIX_TIMESTAMP($date_time);  # 4023794096

my $date_time = FROM_UNIXTIME(2**31);
my $sql  = qq(
       UPDATE project
       SET    start_time = ?
       WHERE  id = 1
);
$dbh->do($sql, undef, $date_time);

DESCRIPTION

This module extends the date range of localtime(), gmtime(), timegm() and timelocal() to go safely beyond 2038 and before 1970 on any operating system.

It also provides a handful of useful time conversion functions.

PUBLIC FUNCTIONS

  • timelocal

    Invoked in the same way as Time::Local::timelocal().

  • localtime

    Invoked in the same way as CORE::localtime().

  • timegm

    Invoked in the same way as Time::Local::timegm().

  • gmtime

    Invoked in the same way as CORE::gmtime().

  • UNIX_TIMESTAMP

    Invoked similarly to the MySQL UNIX_TIMESTAMP() function()

  • FROM_UNIXTIME

    Invoked similarly to the MySQL FROM_UNIXTIME() function()

LIMITATIONS

Because of the way timegm() and timelocal() try to Do What You Mean with the year, it is impossible to feed it the years 0 through 99 (it thinks you mean 2000 - 2099).

While the code can in theory go out to 2**63, the practical portable limit of this code is from 2**52 to -2**52 (the limit of double floating point precision) after which precision starts to drop off. This gives you a range of about +/- 142 million years.

BUGS

Doesn't correctly handle British Summer Time 1968-1971

Please e-mail bug reports or suggestions to bobo@cpan.org. Thanks!

CREDITS

Thanks to Michael Schwern for extending this module's capabilities beyond 2098.

Thanks to Peter Kioko for helping to refine the idea, and Adam Foxson, the Human CPAN Reference Manual, for quality assurance.

AUTHOR

Bob O'Neill, <bobo@cpan.org>

COPYRIGHT AND LICENSE

Copyright (C) 2003-2008 Bob O'Neill and Michael Schwern. All rights reserved.

See COPYING for license

SEE ALSO