#!/usr/bin/perl --
use strict;
use warnings;
use DateTime::Format::Strptime;

my $timestamp = q{20150619-17:30:43.616};

my $fmt = DateTime::Format::Strptime->new(
    pattern => q{%Y%m%d-%T.%3N},
    time_zone => 'UTC',
);

my $dt = $fmt->parse_datetime( $timestamp );
printf "%20s %s\n", $dt->time_zone_long_name, $fmt->format_datetime( $
+dt );
$dt->set_time_zone( 'EST5EDT' );
printf "%20s %s\n", $dt->time_zone_long_name, $fmt->format_datetime( $
+dt );
$dt->set_time_zone( 'EST' );
printf "%20s %s\n", $dt->time_zone_long_name, $fmt->format_datetime( $
+dt );
$dt->set_time_zone( 'America/New_York' );
printf "%20s %s\n", $dt->time_zone_long_name, $fmt->format_datetime( $
+dt );
__END__
                 UTC 20150619-17:30:43.616
             EST5EDT 20150619-13:30:43.616
                 EST 20150619-12:30:43.616
    America/New_York 20150619-13:30:43.616
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