What fits in 15 minutes
- Power nap — the classic quarter-hour.
- One study unit — flashcards or a single problem, fully focused.
- Roast vegetables' first check; simmer a quick sauce.
- A daily standup that actually stands up.
The quarter hour as a commitment device
Fifteen minutes is the largest block almost anyone will grant without negotiation — which makes it the perfect wedge for habits: the daily language drill, the instrument scales, the walk. Chain two with a break and you've built a real session out of increments too small to refuse.
How this timer works
Press Start and the countdown anchors to your device's clock, so it stays second-accurate even in a background tab — the time remaining also ticks in the tab title. When it hits zero the display flashes and an alarm beeps three rounds (toggle the sound off if you prefer a silent flash). Use +1 min to extend on the fly, and fullscreen for a wall-visible display in classrooms and gyms.
Frequently asked questions
Is a 15 minute power nap good?
It's near the sweet spot: long enough for light sleep's benefits, short enough to avoid deep-sleep grogginess. Lie down promptly and let the alarm do the worrying — even relaxed rest without sleep helps.
How much can I study in 15 minutes?
One tight unit: a flashcard deck, one past-paper question, one concept explained aloud. Short daily blocks beat rare marathons — spaced repetition research is unambiguous about it.
Will the timer keep running if I switch tabs?
Yes — the countdown is anchored to your device clock, not to the page being visible, so it stays accurate in a background tab. The remaining time also shows in the tab title so you can see it at a glance.
Does the alarm work with my phone on silent?
The alarm plays through the browser at your media volume. If your device is muted or the tab's sound is blocked, you'll still see the display flash and the tab title change — but for must-not-miss timing, unmute or keep the tab visible.