Set a countdown in hours, minutes and seconds — get an alert when time is up. No download, works on any device.
Also track elapsed time with our Stopwatch or calculate dates with the Age Calculator.
Countdown timers are useful for cooking, exercise intervals, Pomodoro work sessions, exam practice, presentations, and any situation where you need to track a specific duration. This browser-based online countdown timer requires no download and works on any device — desktop, tablet, or mobile.
This tool works as a browser countdown timer, Pomodoro timer, and interval timer for students, professionals, athletes, and anyone who needs to manage time without installing an app or carrying a physical timer.
Students use countdown timers for exam practice — setting 25-minute Pomodoro focus blocks followed by 5-minute breaks to improve concentration and retention. Timed practice sessions also help build the habit of pacing answers correctly under test conditions. A countdown timer on screen provides a constant visual cue without requiring the student to keep checking a clock.
Fitness and sports use countdown timers for interval training, HIIT sessions, rest periods between sets, and timed exercises like planks or sprints. Setting a 45-second work interval followed by a 15-second rest is easy with this tool — just enter the time, start, and reset between rounds. No gym app subscription or dedicated hardware needed.
Professionals use countdown timers to manage meeting time, enforce speaking limits in presentations, and track deadlines for timed tasks. A presenter can set a 3-minute timer for each section of a talk to ensure they stay on schedule. A teacher can use it to pace classroom activities, give students timed writing exercises, or manage quiz time fairly without constantly watching a clock. The pause and resume feature makes it flexible enough for situations where the timing needs to be interrupted and continued without losing track of the remaining duration.