Free Online Countdown Timers

Instant, distraction-free countdown clocks with acoustic alarm chimes, background tab synchronization, and full-screen display modes.

1 Minute Timer

60s quick reset, breathing pauses, micro plank sets

Start 1 Minute Timer →

2 Minute Timer

120s GTD two-minute rule, tooth brushing, fast check-ins

Start 2 Minute Timer →

3 Minute Timer

180s tea steeping, soft-boiled eggs, boxing rounds

Start 3 Minute Timer →

4 Minute Timer

240s Tabata HIIT workout protocol, French press coffee

Start 4 Minute Timer →

5 Minute Timer

300s Pomodoro short break, 5-minute tidy, agile standups

Start 5 Minute Timer →

6 Minute Timer

360s reading habit stress reduction, 6MWT walking tests

Start 6 Minute Timer →

7 Minute Timer

420s scientific 7-minute workout, lightning standups

Start 7 Minute Timer →

8 Minute Timer

480s 8-minute core conditioning, firm-boiled eggs

Start 8 Minute Timer →

9 Minute Timer

540s standard snooze cycle, classroom transitions

Start 9 Minute Timer →

10 Minute Timer

600s power nap, speed cleaning, 10-minute sprint drills

Start 10 Minute Timer →

12 Minute Timer

720s CrossFit EMOM/AMRAP, Cooper aerobic tests, baking

Start 12 Minute Timer →

15 Minute Timer

900s Pomodoro long break, coffee walks, morning yoga

Start 15 Minute Timer →

20 Minute Timer

1200s NASA power nap, 20-20-20 eye strain rest, HIIT

Start 20 Minute Timer →

25 Minute Timer

1500s classic Pomodoro focus sprint, study, coding

Start 25 Minute Timer →

30 Minute Timer

1800s half-hour meetings, workouts, deep study blocks

Start 30 Minute Timer →

40 Minute Timer

2400s school class periods, full yoga flows, baking

Start 40 Minute Timer →

45 Minute Timer

2700s college lectures, 45/15 productivity cadence, spinning

Start 45 Minute Timer →

50 Minute Timer

3000s 50/10 productivity method, university seminars

Start 50 Minute Timer →

60 Minute Timer

3600s full 1-hour deep work sprint, exam practice, roasts

Start 60 Minute Timer →

90 Minute Timer

5400s Ultradian rhythm cognitive flow, 90m sleep cycles

Start 90 Minute Timer →

2 Hour Timer

7200s 2+ hour deep work marathon, standardized test blocks

Start 2 Hour Timer →

Why Choose TimerBox Countdown Timers?

Unlike traditional clock websites loaded with intrusive ads and distracting popups, TimerBox delivers clean, instantaneous countdown tools designed strictly for focus. Our timers employ timestamp-delta calculation via Date.now(), guaranteeing that even if your browser throttles background tabs or your device falls asleep, your timer will always sound at the exact millisecond time expires.

All TimerBox timers feature full-screen support (ideal for classroom projectors, gym displays, and desktop focus), floating Picture-in-Picture mode, audio soundscapes (gentle rain, brown noise, ocean waves), and zero account requirements.

Looking for structured work intervals?

Try our flagship Pomodoro timer and customizable timeboxing workspace.