countdowntimer
nounUK /ˈkaʊntdaʊn ˈtaɪmə/
US /ˈkaʊntdaʊn ˈtaɪmər/
A countdown timer is a clock that counts backward to zero.
She set a countdown timer for ten minutes to bake the cookies.
OTHER MEANINGS
2. A software feature that shows the time remaining before an event.
The website displayed a countdown timer until the game launch.
3. A device used in sports to track the remaining playing time.
The referee checked the countdown timer on the scoreboard.
4. A tool for managing tasks by counting down a set period.
He used a countdown timer to stay focused while studying.