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Set a countdown timer from hours, minutes, and seconds with quick presets, or count down to a specific date and time. Perfect for classroom activities, presentations, cooking, workouts, exams, and event countdowns. Features 10 alarm sounds, configurable ring duration, progress bar, and fullscreen mode for TVs and projectors. Customize with 60+ fonts and color themes.
Yes. Switch to the "Countdown to Date" tab to enter any future date and time. The timer will display a live countdown in days, hours, minutes, and seconds until that moment arrives. You can also jump to popular holiday countdowns like Christmas, New Year's Eve, and Halloween.
Yes. The timer uses the Page Visibility API and high-resolution performance timing to stay accurate even when the browser tab is in the background or minimized. The alarm sound will play when the timer reaches zero, even if you are in another tab.
Choose from 20 alarm sounds including classic bell, gentle chime, digital beep, xylophone, morning birds, and louder options like fire alarm, buzzer, and air horn. You can also set the ring duration from 15 seconds up to 10 minutes.
Yes. Click the fullscreen button in the toolbar or press F on your keyboard. The timer fills your entire screen with a large, easy-to-read display—perfect for classrooms, presentations, cooking, and workouts.
Yes, completely free with no sign-up or download required. All features including quick presets, date countdowns, custom sounds, fullscreen mode, and progress bar visualization are available at no cost.