1) Write your receiver's name as it is present in your Whatsapp chat. (case-sensitive) 2) Write the lovely message 3) Select the date on which you want that message to send 4) Select the hour in 24-hr format. (Later thinking to introduce 12-hr format with AM-PM. It is what it is.) 5) Select the min. (Precise messages while you are sleeping) 6) Click on the get QR button 7) Scan the QR with your Whatsapp 8) Done! Now forget about the message and sleep sound.