Set quick countdown timers in browser.
The Countdown Timer counts down from any duration you set — in seconds, minutes, or hours — and alerts you when time is up. Use it for time-boxing work sessions, cooking timers, presentation practice, exam simulation, HIIT workout intervals, meeting time limits, and any situation where you want a visible countdown. Unlike a stopwatch (which counts up), a countdown creates urgency and makes the remaining time explicit, which research shows increases focus and task completion rate.
A countdown starts from a set time and counts toward zero — creating urgency and a defined end point. A stopwatch starts at zero and counts up — useful for measuring how long something takes. Countdowns are better for time-boxing; stopwatches are better for timing activities.
Yes. Set it to 1500 seconds (25 minutes) for a Pomodoro focus session, or 300 seconds (5 minutes) for a short break. For a dedicated Pomodoro experience with automatic session tracking, use the Pomodoro Timer tool.
The timer continues while the tab is open, but some browsers throttle timers in background tabs to save resources. Keep the tab visible or use your device's native clock app for mission-critical timing.