Angle Between Hands of a Clock — Python

# Time:  O(1)
# Space: O(1)

class Solution(object):
    def angleClock(self, hour, minutes):
        """
        :type hour: int
        :type minutes: int
        :rtype: float
        """
        angle1 = (hour % 12 * 60.0 + minutes) / 720.0
        angle2 = minutes / 60.0
        diff = abs(angle1-angle2)
        return min(diff, 1.0-diff) * 360.0