15 Minute Timer
Free online 15 minute countdown timer with alarm
Space start/pause · R reset · ↑↓ adjust
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About the 15 Minute Timer
Set a free 15 minute timer online. Get an alarm when your 15-min countdown finishes. Works in the background on desktop and mobile.
Common Uses
- Focused work sprint
- Walking break
- Cooking prep time
- Reading session
- Email time-box
How to Use
- Click Start to begin your 15 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 15 minute timer finishes
Frequently Asked Questions
How long is 15 minutes?▾
15 minutes is exactly 900 seconds, or 0.3 of an hour. Our free 15-minute timer counts down precisely and alerts you when time is up.
What can I do in 15 minutes?▾
A 15 minute timer is great for focused work sprint, walking break, cooking prep time. 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 15 minute timer on my phone?▾
Yes, our 15 minute timer is fully responsive and works on all devices including iPhone and Android. Open this page in your mobile browser and tap Start.