#s(tz
   (#s(span -inf.0 0 0 -inf.0 "UCT"))
   #s(*zone-span 0 () "UCT")
   (#s(span #s(*date 2039 12 1 0 0 0 0) 0 0 2039 "UCT")
    #s(span -inf.0 0 0 -inf.0 "UCT")))