20 Minute Timer
Free online 20 minute countdown timer with alarm
Space start/pause · R reset · ↑↓ adjust
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About the 20 Minute Timer
Free 20 minute countdown timer with alarm. Perfect for work sessions, cooking, and study breaks. Works in your browser — no app needed.
Common Uses
- Power nap
- Focused deep work
- Workout session
- Cooking main dish
- Study session
How to Use
- Click Start to begin your 20 minute countdown
- Use the +/- buttons to adjust by 1 minute while running
- Press Space to start/pause, R to reset your timer
- Enable notifications for alerts when your 20 minute timer finishes
Frequently Asked Questions
How long is 20 minutes?▾
20 minutes is exactly 1,200 seconds, or 0.3 of an hour. Our free 20-minute timer counts down precisely and alerts you when time is up.
What can I do in 20 minutes?▾
A 20 minute timer is great for power nap, focused deep work, workout session. Set it and focus on your task — the alarm will let you know when time is up.
Does the timer work in the background?▾
Yes, our timer continues running even if you switch to another tab or minimize your browser. Enable notifications to get alerted when it finishes.
Can I use the 20 minute timer on my phone?▾
Yes, our 20 minute timer is fully responsive and works on all devices including iPhone and Android. Open this page in your mobile browser and tap Start.