Something

on *:text:!setevent*:#oip:{  if ($nick isop $chan || $nick ishop $chan) { 
    set %time $ctime
    set %event $2
    /msg $chan The Newest Event Has been Set by $nick at $time
  }
}
on *:text:!event*:#oip:{  if ($nick isop $chan || $nick ishop $chan) { 
    /notice $nick The Latest Event is %event Which was set $duration($calc($ctime - %time)) ago by $nick 
    unset %event
  }
}