countdown {
  if ($1) {
    .timercountdown 0 11600 Displaycountdown $1-
  }
  else echo -a ERROR:  October 24 2007 6:17.
}
Displaycountdown {
  if ($ctime($1-) < $ctime) { .timercountdown off | return }
  msg #chan  Countdown: $duration($calc($ctime($1-) - $ctime))
}
F5 /Displaycountdown March 09 2008 12:01am