Related Clues:

• Adjust, as an alarm clock
• Change, as an alarm
• Router button
• Go back to the default settings
• Trip-odometer button
• Siesta, say
• Change, as a watch
• Appliance button
• Take forty winks
• Buzzer-beating button
• Fix the clock
• Arrange again
• Certain time-out
• Make another time?
• Bring back to 0, perhaps