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Top Forums Shell Programming and Scripting Date conversion from Standard/given format to seconds/epoch Post 302539699 by thegeek on Monday 18th of July 2011 11:55:49 AM
Old 07-18-2011
Not all date command offers you all options.

You may have to use some script ( probably perl script ) to do the conversion ....

Code:
use DateTime;
$dt = DateTime->new( year => 1974, month => 11, day => 30, hour => 13, minute => 30,      second => 0, nanosecond => 500000000, time_zone => 'Asia/Taipei' ); 
$epoch_time  = $dt->epoch;

Refer Perl Epoch Converter Routines
 

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DateTime::Format::Epoch::ActiveDirectory(3pm)		User Contributed Perl Documentation	     DateTime::Format::Epoch::ActiveDirectory(3pm)

NAME
DateTime::Format::Epoch::ActiveDirectory - Active Directory epoch seconds SYNOPSIS
use DateTime::Format::Epoch::ActiveDirectory; my $dt = DateTime::Format::Epoch::ActiveDirectory ->parse_datetime( 1051488000 ); DateTime::Format::Epoch::ActiveDirectory->format_datetime($dt); # 1051488000 my $formatter = DateTime::Format::Epoch::ActiveDirectory->new(); my $dt2 = $formatter->parse_datetime( 1051488000 ); $formatter->format_datetime($dt2); DESCRIPTION
This module can convert a DateTime object (or any object that can be converted to a DateTime object) to the number of seconds since the epoch used in Microsoft Active Directory. Note that this epoch is defined in the local time zone. This means that these two pieces of code will print the same number of seconds, even though they represent two datetimes 6 hours apart: $dt = DateTime->new( year => 2003, month => 5, day => 2, time_zone => 'Europe/Amsterdam' ); print $formatter->format_datetime($dt); $dt = DateTime->new( year => 2003, month => 5, day => 2, time_zone => 'America/Chicago' ); print $formatter->format_datetime($dt); METHODS
Most of the methods are the same as those in DateTime::Format::Epoch. The only difference is the constructor. o new() Constructor of the formatter/parser object. It has no parameters. SUPPORT
Support for this module is provided via the datetime@perl.org email list. See http://lists.perl.org/ for more details. AUTHOR
Eugene van der Pijll <pijll@gmx.net> COPYRIGHT
Copyright (c) 2004 Eugene van der Pijll. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
DateTime datetime@perl.org mailing list perl v5.10.1 2007-12-03 DateTime::Format::Epoch::ActiveDirectory(3pm)
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