The alarm clock having a motion sensor and mobile device connectivity is an alarm clock providing connectivity with a cellular telephone, smartphone or any similar suitable type of mobile device. The alarm clock having a motion sensor and mobile device connectivity includes an optical projector for projecting an image representative of a display screen of the mobile device on an external display surface, such as a wall or a ceiling. The alarm clock having a motion sensor and mobile device connectivity includes a housing for receiving a clock controller. A clock display, audio alarm, motion sensor, optical projector and a device interface are each mounted on the housing and are in communication with the clock controller. Actuation of the motion sensor by detected movement of a user's hand or the like selectively actuates the optical projector to project the image representative of the display screen of the mobile device.