You can just push the scalar array reference if you want the whole array: 
push @ip_time, $entry;

[download]
Or you can skip the variable altogether and use: 
push @ip_time, [ split /,/ ];

[download]
Here is the complete example with the slices: 
use strict;
use Data::Dumper;
my $entry;
my @ip_time;
 
$_= "a,b,c,d,e,f";
$entry = [ split /,/ ];
push @ip_time, $entry;  # This does the whole array
 
$_= "g,h,i,j,k,l";
 
push @ip_time, [ split /,/ ];  # This does the whole array

push @ip_time,  [@{[ split /,/ ]}[0,5]];  # Slice it!
push @ip_time,  [(split /,/ )[0,5]];   # This works, too

$_= "m,n,o,p,q,r";
$entry = [ split /,/ ];
push @ip_time, [ @{$entry}[0,5] ];
 
print Dumper(@ip_time);

[download]

Update: fixed per wog's recommendation

It should work perfectly the first time! - toma

In reply to Re: Slice of an array of an array by toma
in thread Slice of an array of an array by nysus

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.