If your new to this game, Home mode: Click 'Mode' to change screen The alarm Key shows when you need an alarm That big key destroyed in 5 seconds Date: Temperature is resets each deck play Month and day Alarm: Click 'Start' to alarm sound Hold 'Start' out to add notice hour Click 'Reset' to add notice minute They're persistent Edit mode: Click 'Start' to add minute Click 'Reset' to add hour Edit date mode: You can't edit temperature Click 'Reset' to add month Click 'Start' to add day your own