#s(tz
   (#s(span #s(*date 1976 12 1 0 0 0 0) -10800 0 1976)
    #s(span -inf.0 0 0 -inf.0))
   #s(*zone-span -10800 () ROTT)
   (#s(span #s(*date 1976 12 1 0 0 0 0) -10800 0 1976)
    #s(span -inf.0 0 0 -inf.0)))