Abstract: A mounting structure incorporated into the dashboard of an automotive vehicle or the like for removably supporting a portable, self-contained, battery operated alarm clock to enable the clock to be easily mounted in the dashboard and just as easily removed therefrom to enable the clock to be used in the vehicle in a customary manner and removed therefrom and carried to any desired location for use as a portable alarm clock having general utility. The clock is especially useful by travelers since it can be taken out of the automobile and into the motel or hotel room so that it can be used as an alarm clock. The mounting structure and clock are uniquely associated so that the clock may be easily inserted but yet securely retained in the vehicle dashboard even when traversing rough or uneven roadways and the like with a manually manipulated structure enabling easy removal of the clock from its secure position in the dashboard.