Loading...
Set a countdown timer with hours, minutes, and seconds. Start, pause, resume, and reset with an audio alert when time expires. Quick presets for common durations.
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
Generate formatted standup updates with yesterday, today, and blockers for async teams.
Sort tasks by urgency and importance into four action quadrants.
Track expenses by category with totals and summaries. Data saved locally — no signup.
Track daily habits with streaks, completion rates, and a 30-day visual grid.
Create professional invoices with line items, tax, and discounts. Export as PDF instantly.
Drag-and-drop task board with To Do, In Progress, and Done columns. Saved locally.