This is a problem I keep running into and I honestly don't know how to solve it properly. It seems like there must be an elegant solution. I have a list of dates in epoch format and I want to break them into hour/day/week/month chunks for reporting (charts/statistics) purposes. Here's the approach I'm using now. Is this a sane path or is there a better way? 
use warnings;
use strict;

use DateTime;
use Data::Dumper;

my @times = qw( 1176992127 1177011950 1177035464 1177059040 1177063718
+ 1177074117 1177100432 1177135347 1177165344 1177193537 1177202407 11
+77222982 1177224344 1177271548 1177280164 1177290568 1177320406 11773
+69446 1177392779 1177418018 1177424739 1177450967 1177459364 11774883
+49 1177506719 1177533725 1177544267 1177554850 1177596791 );


my %date_count;

foreach my $time (@times) {
        my $dt = DateTime->from_epoch( epoch => $time );

        $date_count{$dt->year}->{$dt->month}->{$dt->day}->{$dt->hour}+
++;
}

print Dumper \%date_count;

exit;

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In reply to Split date ranges/chunks based on Unix epoch time? by Anonymous Monk

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