#s(tz
   (#s(span #s(*date 1950 1 1 0 0 0 0) 18000 0 1950)
    #s(span -inf.0 0 0 -inf.0))
   #s(*zone-span 18000 () TFT)
   (#s(span #s(*date 1950 1 1 0 0 0 0) 18000 0 1950)
    #s(span -inf.0 0 0 -inf.0)))