alias theme {
  if ($time(HH:nn) != % [ $+ [ $wid ] ]) {
    set % [ $+ [ $wid ] ] $v1 
    return $+($in3,$time(hh.nnt),$out3) $str($chr(160),3) 
  } 
  else return $str($chr(160),18)
}
on *:CLOSE:*:{ unset % [ $+ [ $wid ] ] $v1 }

output:

(01.32a)     ‹@sirkit› the point of the script is so the timestamp only shows up once per minute per window
(01.32a)     ‹@chew› first thought of what $wid returned would be window id?
                   ‹@chew› hm
                   ‹@sirkit› however, it just showed up for me on that msg, but its also going to say it when you send one
                   ‹@chew› that's a neat idea~
                   ‹@sirkit› like the first time i send it, the first time you send it, is what its doing
                   ‹@chew› oh
(01.33a)     ‹@sirkit› i suppose that could be a better thing though
(01.33a)     ‹@chew› still