Countdown Timer
A clean, fullscreen countdown timer you can customize — set any time from seconds to hours, choose your clock size, and pick background and text colors. Start, pause, and reset with a click or keyboard shortcut.
Timer Settings
Other Tools
Why use a countdown timer
Works on any device — phone, tablet, laptop, or connected TV.
Presentations & talks
Keep speakers on time with a visible countdown on a shared screen
Cooking & baking
Set exact cook times — no more over- or under-cooked food
Classroom tests
Display a full-screen timer for students taking exams or quizzes
Meeting time-boxes
Limit agenda items so meetings finish on schedule
Workout intervals
Time rest periods between sets, HIIT rounds, or stretch holds
Study sessions
Work in focused blocks — know exactly how much time remains
Event countdowns
Count down to a speech, product launch, or event start
Kids activities
Make cleanup or task time visible and fair for children
Board games
Add time pressure to turn-based games like chess or trivia
Meditation sessions
Know when your sit ends without constantly checking the clock
How it works
Enter your desired time in hours, minutes, and seconds
Press Start — the countdown begins immediately
Pause and resume at any point without losing your time
Press Fullscreen to expand for presentations or shared displays
An alert sounds when the countdown reaches zero
Complete guide
Presentations and Classrooms
A fullscreen countdown timer is one of the most effective tools for keeping presentations, lectures, and exams on track. Display it on a projector or second screen so both the presenter and audience can see the remaining time. The large, readable clock eliminates the awkward back-channel communication between speakers and event organizers.
Cooking and Kitchen Timing
Kitchen timers on smartphones get buried under notifications. A fullscreen browser countdown stays visible and impossible to miss — especially useful on tablets mounted in the kitchen. Set precise durations for roasting, proofing dough, marinating meat, or timing a multi-course meal with multiple overlapping timers.
Fitness and Interval Training
Time your rest intervals between weightlifting sets or track how long you hold a yoga pose. A large countdown display is far easier to glance at than a phone screen mid-workout. Combine it with the HIIT Timer for structured interval sessions with automatic switching between work and rest periods.
Deep Work and Study
Research consistently shows that working in bounded time blocks improves focus and reduces procrastination. Knowing you have 45 minutes (not an open-ended session) creates urgency and reduces task-switching. Use the countdown timer alongside the Pomodoro Timer for a complete focus workflow.
Keyboard Shortcuts
Start or pause with the spacebar, reset with R, and toggle fullscreen with F — all without touching the mouse. These shortcuts make the countdown timer practical for presenters managing clickers and educators who need quick control during class without walking back to the keyboard.
Custom Colors and Clock Size
Choose background and text colors to match your brand, slide theme, or event color scheme. The adjustable clock size means the timer stays readable whether it is on a laptop screen, a 65-inch conference room display, or a tablet next to the stove.
See Also
Frequently Asked Questions
Everything you need to know about countdown timer.