40 Minute Timer
Free online 40 minute countdown timer with alarm
Space start/pause · R reset · ↑↓ adjust
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About the 40 Minute Timer
Start a free 40 minute timer with alarm. Ideal for meetings, workouts, and deep focus. Background alerts and fullscreen on all devices.
Common Uses
- Focused work session
- Break reminder
- Cooking timer
- Exercise interval
How to Use
- Click Start to begin your 40 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 40 minute timer finishes
Frequently Asked Questions
How long is 40 minutes?▾
40 minutes is exactly 2,400 seconds, or 0.7 of an hour. Our free 40-minute timer counts down precisely and alerts you when time is up.
What can I do in 40 minutes?▾
A 40 minute timer is great for focused work session, break reminder, cooking timer. 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 40 minute timer on my phone?▾
Yes, our 40 minute timer is fully responsive and works on all devices including iPhone and Android. Open this page in your mobile browser and tap Start.