#s(tz
   (#s(span -inf.0 -3600 0 -inf.0 "GMT+1"))
   #s(*zone-span -3600 () "GMT+1")
   (#s(span #s(*date 2039 12 1 0 0 0 -3600) -3600 0 2039 "GMT+1")
    #s(span -inf.0 -3600 0 -inf.0 "GMT+1")))