on $*:TEXT:/^[@!]time*/Si:#:{ 
var %way = $iif($left($1,1) == @, msg $chan, notice $nick))
%way 14 it is7 $time(hh:nn) 14and the date is7 $asctime(dddd mmmm dd $+ $chr(44) yyyy) 
} 

 you temporarily set %way as whatever the $iif statement comes out to, then %way will either msg $chan or notice $nick depending on $iif.