Something

alias /checktime {
  ; Add to hash as:
  ; .hadd -mu3800 pretime Test.Rls-Now2 $ctime

  var %mp3 = Test.Rls-Now2  
  var %maxtime = 50000

  if $hfind(pretime,%mp3) {
    var %rls = $hfind(pretime,%mp3)
    var %rlstime = $hget(pretime,%mp3)
    if ($calc($ctime - %rlstime) > %maxtime) { return }
    msg # %rls released $calc($ctime - %rlstime) ago
  }
}