HOMVILLA 8808 Manual Del Usuario página 13

Note: If you have manually adjusted the screen brightness, the automatic screen brightness
adjustment function will be disabled. To use this feature again, you need to reset the alarm clock.
Switch Temperature Unit and Time Format
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In time display mode, press the " " button to switch the temperature unit between
degrees Celsius and Fahrenheit.
In time display mode, press the "TIME SET" button to switch the time format
between 12-hour and 24-hour.
Note: In order to ensure the accuracy of the temperature, please leave the alarm clock for more
than 30 minutes after opening the package.