2, generally not suitable for hanging. Hanging a clock above the door is equivalent to the noise on the top of the head when people go in and out, which easily affects the neurological function of the brain. Besides, it's easy to eat indiscriminately.
A clock is like a compass in feng shui. You can put the clock in an auspicious position, such as the financial position. Putting the clock on the financial position can promote wealth and is the icing on the cake. When hanging outside, you can aim the clock at the door and window, because the door and window are the vents of the house, and all kinds of evil spirits come in from the door and window, but it is best not to hang the clock on the door.