How the countdown works
The countdown uses the clock on your device and updates every second. If 4:20 PM has already passed today, it counts down to 4:20 PM tomorrow. 4:20 PM is 16:20 in 24-hour (military) time.
Whether you want to know how long till 4:20 PM or just need a countdown to 4:20 PM for the end of a shift, a class, a meeting, a cooking timer or a store opening, keep the page open and the timer keeps running.