Check out this 20-Second Timer with a notification sound when the time runs out. This timer video has a 10 second buffer at the end, so the video time is 10 seconds longer than the timer. Check out this playlist for more timers: https://youtube.com/playlist?list=PLiT3pCvK_cfX7q0V4lM0w-kp4cqPqVQGF&si=Kpfvm_foajDE5wDE Email: math5.mrj@gmail.com Hopefully this video is what you're looking for when it comes to a timer! Have a great rest of your day! ✌️✌️✌️