A single day alarm clock radio includes a plurality of music setting buttons for setting different types of music; and having alarm buttons for setting an alarm for a radio mode, a buzzer mode, or an alarm off mode. A preset locking switch is provided for locking or unlocking the clock radio to allow the time to be preset, or the alarm time to be preset, or the radio station to be preset, or the type of music to be preset. Also provided is software for automatically cancelling a preset alarm time once it has sounded to change the alarm setting to the "off" mode so that a new hotel guest is not subject to the preset alarm time of the previous hotel guest.