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Set a countdown timer with hours, minutes, and seconds. Start, pause, resume, and reset with an audio alert when time expires.
A countdown timer counts down from a set duration to zero, providing an audible alert when time expires. Useful for cooking, workouts, presentations, and time management.
00:00:00
Formula
Remaining Time = Total Duration − Elapsed TimeTotal Duration = initial countdown time set by the user in seconds
Elapsed Time = seconds that have passed since the timer started
Worked Example
Setting a 10-minute cooking timer
Did you know? Countdown timers have been used in space launches since NASA's earliest missions. The tradition of the 'T-minus' countdown was standardized during the Apollo program.
Sources
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