'SubRipTime(hours, minutes, seconds, milliseconds)
All arguments are optional and have a default value of 0.'

def __init__(self, hours=0, minutes=0, seconds=0, milliseconds=0):

    super(SubRipTime, self).__init__()
    self.ordinal = ((((hours * self.HOURS_RATIO) + (minutes * self.MINUTES_RATIO)) + (seconds * self.SECONDS_RATIO)) + milliseconds)
