#s(tz
   (#s(span #s(*date 1997 3 2 2 0 0 39600) 39600 0 1997 "NCT")
    #s(span #s(*date 1996 12 1 2 0 0 39600) 39600 3600 1996 "NCST")
    #s(span #s(*date 1979 2 27 0 0 0 43200) 39600 0 1979 "NCT")
    #s(span #s(*date 1978 12 3 0 0 0 39600) 39600 3600 1978 "NCST")
    #s(span #s(*date 1978 2 27 0 0 0 43200) 39600 0 1978 "NCT")
    #s(span #s(*date 1977 12 4 0 0 0 39600) 39600 3600 1977 "NCST")
    #s(span #s(*date 1912 1 13 0 0 0 39948) 39600 0 1912 "LMT")
    #s(span -inf.0 39948 0 -inf.0 "LMT"))
   #s(*zone-span 39600 () "NC~aT")
   (#s(span #s(*date 1912 1 13 0 0 0 39948) 39600 0 1912 "LMT")
    #s(span -inf.0 39948 0 -inf.0 "LMT")))