I'm afraid I've muddied up the waters with any (badly) supplied ideas. Sorry if I've only added to the confusion :-(

I'll look over your latest post.

Update: I found an extra right brace at the very end of your program that should be removed.

}   ## end format time sub
}  <- remove this brace
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Maybe the code below will help. I don't know if hash slices is the answer or not - depends on how they're used. I eliminated the %this_wk hash and the %hrs and added a subroutine, process. Its difficult to tell if this may work as I don't have a database to test it against.

#!/usr/bin/perl

use strict;
use warnings;
use DBI;
use Date::Simple qw(today);
use Time::Format qw(%time time_format %strftime %manip);
use Data::Dumper;
use Skidmore::Utils qw(setOracleEnv);

# -- call sub to set Oracle env so script can run as cronjob
&setOracleEnv;

# -- define outfile 
my $htmlout = "/www/includes/lib_hours2.html";

#connection info for webprod
my ($dsn,$dbun,$dbpass) = ( 'dbi:Oracle:host=;sid=;port=','','' );

# -- define today
my $today_date = today;
my $end_date = $today_date + 6;

# -- connect to Webprod db
my $dbh = DBI->connect( $dsn,$dbun,$dbpass, { AutoCommit => 0, RaiseEr
+ror => 0, PrintError => 1 } ) || die $DBI::errstr;

# -- query to get hours for the upcoming week  
my $sql = qq(SELECT TO_CHAR(libdate,'YYYY-MM-DD'),openhour,closehour 
FROM hours 
WHERE TO_CHAR(libdate,'YYYY-MM-DD') BETWEEN '$today_date' AND '$end_da
+te');

my $sth = $dbh->prepare( $sql );
$sth->execute;

# -- fetch all data and create var to refer to   
my $arrayref_hrs = $sth->fetchall_arrayref( );
$sth->finish;
$dbh->disconnect;

my $today = shift @$arrayref_hrs;
my $href = process($today);

my $content;

# -- write today's hours 
if ( $href->{open} eq 'closed') {
    $content = qq(<p class="scribsmalltext">Today the library is close
+d</p>);   
}
else {
    $content = qq(<p class="scribsmalltext">Today's hours are $href->{
+open} - $href->{close}</p>);
}

$content .= qq(<table style="height:80px;" class="scribsmalltext" widt
+h="200" border="0"><tbody>);

foreach my $row ( @$arrayref_hrs ) {
    my $href = process($row);
    
    if ( $href->{open} eq 'closed') {
        $content .= "<tr><td>$href->{date}</td><td>Closed</td></tr>"; 
+  
    }
    else {
        $content .= "<tr><td>$href->{date}</td><td>$href->{open} - $hr
+ef->{close}</td></tr>";
    } ## end if 
        
}

# -- close the html table and print all html to file
$content .= qq(</tbody></table>);
open OUTFILE, ">$htmlout" or die $!; 
print OUTFILE $content;
close OUTFILE;

# -- Subs start here
# --
sub format_time {
    my $time = shift;
    # if $time > 2400, this will 'normalize' it to less than 2400
    # otherwise if $time < 2400, it will remain the same
    my $formatted_time = $time % 2400;

 
    # -- time function (from Time module) needs time string in this fo
+rmat: hh:mm:ss
    # -- our time string is like 800 or 2300 so we must do some format
+ting to it  
    
    # -- first, pad with zero if only 3 character
    $formatted_time = sprintf( "%04s", $formatted_time );
    # -- second, add two zeros to end of time string - seconds
    $formatted_time = $formatted_time .'00';
    # -- third, add ":" separators 
    $formatted_time =~ s/(\d\d)(\d\d)(\d\d)/$1:$2:$3/;
    # -- now use time function for final formatting  
    $formatted_time = time_format('H:mm am', "$formatted_time");
    
    # -- for some reason "0" showing in times less than 10 even though
+ format for time format looks correct 
    # -- let's remove it now
    $formatted_time =~ s/^0//;

    # -- return formatted time string
    return $formatted_time;

}   ## end format time sub

sub process {
    my $row = shift;
    my %hash;
    
    my ( $libdate,$open_hr,$close_hr ) = @$row;
    
    if (defined $open_hr) {
        $hash{open} = format_time($open_hr);    
    }
    else {
        $hash{open} = 'closed';    
    }
    
    if (defined $close_hr) {
        $hash{close} = format_time($close_hr);    
    }
    
    $hash{date} = time_format( 'Day Month dth', $libdate );
    return \%hash;
}
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