15 Minute Timer
Free shareable timer - copy the link and anyone can start counting down instantly.
Why a 15 minute timer?
Fifteen minutes sits in the sweet spot for a power nap. Sleep researchers generally point at ten to twenty minutes, because that keeps you in the lighter stages of sleep - wake up much past that and you hit deep sleep, which produces the groggy, worse-than-before feeling known as sleep inertia.
It is also the long break in a standard Pomodoro cycle, taken after four focus blocks, and the length most cleaning methods use for a single-room sprint. The common thread is that fifteen minutes is short enough to commit to without deliberation.
What people use a 15 minute timer for
- Power naps. Ten to twenty minutes keeps you in light sleep, so you wake up alert rather than groggy.
- Pomodoro long breaks. The extended break after four focus cycles in the standard Pomodoro structure.
- Cleaning sprints. One room, one timer. The constraint is what stops the job expanding to fill the afternoon.
- HIIT sessions. A full high-intensity circuit including warm-up and cool-down fits comfortably in fifteen minutes.
- Revision blocks. Short enough to hold full attention on a single topic without the drift that hits longer sessions.
Other preset timer lengths
Frequently Asked Questions
How long should a power nap be?
Most sleep guidance lands on ten to twenty minutes. That range keeps you in lighter sleep stages, so you wake up refreshed. Napping past roughly thirty minutes risks waking mid-deep-sleep, which leaves you groggier than before.
Is fifteen minutes enough for a workout?
For high-intensity interval work, yes - a full circuit with warm-up and cool-down fits. It is not enough for strength work with long rest periods between heavy sets.
Can I share this link with my class?
Yes - just copy the link from the box above and paste it into your LMS, email, or messaging app. When students open it they get a 15m timer that's ready to start with one tap. No account or download needed.
Does the timer save my progress?
The timer runs entirely in your browser - progress is not saved between page loads. If you refresh or close the tab the timer resets to 15m. For a timer that auto-starts when someone opens the link, add ?autostart=1 to the URL or use the shareable timer generator.
Can I add a label to my timer?
Absolutely. Add a ?label= parameter to the URL - for example https://stopwatch.now/timer-link/15m?label=Math+Quiz. The label appears above the countdown. You can also use the timer link generator to build a labelled timer link without editing URLs by hand.
Can I make the timer auto-start when someone opens the link?
Yes. Add ?autostart=1 to the URL. For example: https://stopwatch.now/timer-link/15m?autostart=1. The timer will begin counting down the moment the page loads - no click required.