Trigger your phone to to do a task on your desired time
Create a task and it well get executed automatically. Set to which ever date you want may be even a year.save battery by switching off Bluetooth when you don't need them, home automation systems needs bluetooth only for a second in certain intervals of time, you can collaborate this bluetooth automation with your home automation system. If you want to give birthday greetings to your friends in a specified time but you could not automatize it here.