types = [
    ((-5, -45, -8), 0, 'LMT'),
    ((-5, -45, -12), 0, 'MMT'),
    (-6, 0, 'CST'),
    (-5, 0, 'EST'),
    (-5, 1, 'CDT'),
    (-6, 0, 'CST')
]
times = [
    ((1, 1, 2, 0, 0), 0),
    ((1890, 1, 1, 5, 45, 8), 1),
    ((1934, 6, 23, 5, 45, 12), 2),
    ((1973, 5, 1, 6, 0), 3),
    ((1975, 2, 16, 5, 0), 2),
    ((1979, 3, 18, 6, 0), 4),
    ((1979, 6, 25, 5, 0), 2),
    ((1980, 3, 16, 6, 0), 4),
    ((1980, 6, 23, 5, 0), 2),
    ((1992, 1, 1, 10, 0), 3),
    ((1992, 9, 24, 5, 0), 2),
    ((1993, 1, 1, 6, 0), 3),
    ((1997, 1, 1, 5, 0), 2),
    ((2005, 4, 10, 6, 0), 4),
    ((2005, 10, 2, 5, 0), 2),
    ((2006, 4, 30, 8, 0), 4),
    ((2006, 10, 1, 6, 0), 2)
]
posix = 'CST6'
