one_min_angle = 6 and one_hour_angle = 0.5 (since the hour hand moves 30 degrees per hour and there are 60 minutes in an hour).minutes_angle = one_min_angle * minutes.hour_angle = (hour % 12 * 30) + (minutes * one_hour_angle).diff = abs(hour_angle - minutes_angle).diff and 360 - diff.