Set a timer for 50 second to wake you up in 50 second This is a free and easy-to-use countdown timer that allows you to set the hour, minute, and second for the online countdown. Simply start the timer, and it will alert you when 50 second have passed. Alternatively, you can set a specific date and time to count down to (or from) an event. Begin your 50 second timer now for a quick and precise reminder.