15 Minute Timer
A free online 15 minute countdown, pre-set and ready — press Start.
What Is the 15 Minute Timer For?
Fifteen minutes is the most-searched timer length in the world, and it earns it: the standard long break in a Pomodoro cycle, the simmer time for white rice, the length of a well-run meeting and the outer edge of a restorative power nap all land on the same quarter hour. It is long enough to leave your desk for, short enough to protect.
Best Uses for a 15 Minute Timer
- Power naps — 10–20 minutes is the range sleep guides commonly suggest for a nap that refreshes without grogginess.
- White rice — fifteen minutes of covered simmering, then a rest, is the classic stovetop method.
- Long Pomodoro breaks — after four focus blocks, the break stretches from five minutes to fifteen or thirty.
Worked Example
A nurse on a run of early shifts naps between coming home and the school run, and the nap has one rule: it ends at the alarm, not 'when I feel like it'. She starts this timer, sets the phone face-down, and sleeps in the chair. Fifteen minutes later the alarm lifts her out of light sleep — before the deep stage that causes the groggy, worse-than-before feeling. The 900 seconds are short enough to fit the gap in her day and strict enough to actually refresh her.
15 Minute Timer Facts at a Glance
- A 15 minute timer is 900 seconds — exactly a quarter of an hour; four of them make 60 minutes.
- Halfway through — seven and a half minutes left — the display reads 07:30.
Is 15 minutes a good length for a power nap?
Fifteen minutes sits inside the 10–20 minute range that sleep guidance commonly recommends for daytime naps: long enough to feel rested, short enough to wake before deep sleep, which is what causes sleep inertia — the heavy grogginess after longer naps. Set the alarm before you close your eyes; a nap that overruns to 40 minutes defeats its purpose.
How long does white rice take to cook on the stove?
The classic absorption method: bring rinsed rice and water (about 1:1.5) to the boil, cover, and simmer on the lowest heat for 15 minutes — this timer — then rest off the heat, still covered, for 5–10 minutes before fluffing. Opening the lid mid-simmer is the main way it goes wrong.
Will the alarm wake me if the tab is in the background?
The countdown itself stays accurate — it is computed from your clock — but browsers throttle background tabs, and some will hold the alarm sound until the tab is shown again. For a nap, keep this tab visible on screen; that is the reliable configuration, and the big display doubles as a clock you can check with one eye.
How many seconds is a 15 minute timer?
900 seconds. A quarter of the way through, the display reads 11:15; halfway, 07:30.