No, Time::Local would return the server's local time, not the client's, since perl is a server-side language. To find the client's local time (without them directly inputting it), you have to use a client-side language, such as javascript, store it in a hidden input field, and then have it submitted when they submit the form. You could try something like: 
<form name="theform" action="getmytime.pl">
<input type="hidden" name="user_localtime">
</form>
<script language="Javascript1.2">
function set_user_localtime()
{
     // find out if the script has already been called
     if ( typeof already_submitted == "undefined" )
     {
          // create new date           
          var datevar = new Date();
          var timestring = datevar.toLocaleString();
          // set the hidden field's value to the local time
          document.theform.user_localtime.value=timestring;
          // submit the form
          document.theform.submit();
     }
     return 1;
}
</script>
<body onLoad="set_user_localtime())">

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(the submitted value will look something like this: 08/18/01 17:28:35) Then you need a perl script that handles that. The perl script could re-write the page, but make sure that you also have something like that assures that the script isn't called again, and is printed right after the content-type header: 
# tells the javascript that the script as already been run
print "<script>var already_submitted=1;</script>";

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Finally, you can find their offset by formatting the submitted value to be similar to perl's localtime like so: 
use CGI;
$query = CGI::new;
$user_localtime = $query->param("user_localtime");
@user_l = split (' ', $query);
@user_time = split (':', $u_l[1]);
@server_localtime = localtime;
$offset = $user_time[0] - $server_localtime[2];
print $offset;

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$offset will be the difference between the server's local time and the user's local time.

In reply to Re: Client's time/date? by jryan
in thread Client's time/date? by the_mind_

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