Alarm clock implementation

[Fabrizio]

Hi everyone, 

I would like to create an alarm clock, the user should be able to set alarm at specific hour and the app should alert with a notification.

Any tips of how to implement something similar? I was thinking about collecting information using a form, saving them in a table and then creating automation to check time and trigger alarm when needed (specific time stored in the table)

Thanks in advanced for any support!

 saving