Timers

30 Minute Timer

A thirty-minute countdown with an alarm at zero — the length of a sitcom episode, a half-hour workout, or a solid block of chores you want to finish.

Countdown timer

One-tap presets
Or set a custom time
Set a duration to begin.

Alarm and notifications

A short tone plays automatically when the timer ends, synthesised in your browser — nothing is downloaded or streamed.

Works even if you switch tabs

This timer tracks the clock time it should finish at, not a count of ticks, so switching tabs or locking your device never makes it run late. The tab title above shows the time left even while you’re looking at something else.

A thirty-minute workout, start to finish

Thirty minutes is a commonly cited length for a complete workout that still gets real results — a short warm-up, a focused block of the actual work, strength or cardio, and a brief cooldown, all inside a window that fits into a lunch break or a gap between other commitments. The value of setting a hard countdown for the whole session rather than timing it loosely is that it forces real prioritization: if the warm-up runs long or a rest period between sets drags, something else in the session has to give, which is a useful kind of pressure rather than an unwelcome one. Set the timer at the start and let it run through the entire session rather than resetting between exercises, so you always know exactly how much of the thirty minutes is left.

Bounding a phone call before it starts

Setting a thirty-minute limit on a call before it begins — a sales call, a vendor negotiation, a catch-up with an old friend — changes the shape of the conversation even when the alarm never actually cuts it off, because both people tend to pace what they say differently once a time limit is stated up front rather than left open-ended. Thirty minutes suits a call that needs more than a quick check-in but shouldn't require blocking out a full hour: enough room for genuine back-and-forth on a few real points, short enough that a call drifting into unrelated tangents becomes noticeable rather than just absorbing the whole afternoon. Running it visibly on a shared screen also gives you a neutral, non-awkward way to flag how much time is left without glancing at a watch mid-conversation.

A thirty-minute simmer or braise

Thirty minutes is a common length for a single simmering or braising stage inside a longer recipe — reducing a sauce down, simmering a stew before adding tender vegetables, or letting a braise tenderize partway through its full cook time — rather than being the whole cook time of most dishes, which often runs well past it. The reason this particular stage benefits from a real timer, even though you're mostly ignoring the pot, is that thirty minutes is exactly long enough to genuinely lose track of once you've moved on to prepping something else, and a scorched pot from a stage that ran five minutes too long is one of the more common and avoidable kitchen mistakes. Start the countdown the moment the stage itself begins.

Thirty minutes of uninterrupted chores or cleaning

Thirty minutes is also a reasonable block for a genuine dent in a bigger household task — laundry folding and put-away, a kitchen deep clean, sorting a backlog of mail or paperwork — long enough to actually finish a discrete chunk of the task rather than just starting it, short enough that it stays a bounded block rather than eating an entire evening. Treat the alarm as a real stopping point: the point of a thirty-minute block is steady, repeatable progress rather than powering through until the whole task is done in one go.

Beyond thirty minutes

Thirty minutes sits at the midpoint of the widget's nine presets, between twenty and forty-five. Anything longer or shorter than exactly half an hour is one tap away through the custom hours/minutes/seconds entry beside the presets, with the same alarm and pause-and-resume behaviour either way.

Questions

Is thirty minutes enough for a proper workout?
Thirty minutes is a commonly cited length for a complete, effective workout — enough time for a short warm-up, a focused main block of strength or cardio work, and a brief cooldown, without requiring the kind of hour-plus block that's often the real reason a workout gets skipped on a busy day. Setting a hard countdown for the whole session does something a mental estimate doesn't: it forces you to actually prioritize which exercises matter most within the block, rather than letting the warm-up or a chatty rest period quietly eat into the working time. If your program specifically calls for a longer session, the custom entry extends past thirty minutes with the same alarm and pause behaviour.
Why time a phone call in advance instead of just hanging up when it feels done?
Setting a thirty-minute limit before a call starts — a sales call, a catch-up, a vendor negotiation — changes how the conversation runs even if the alarm never actually ends it early, because both a stated time limit and a visible countdown tend to keep a conversation from drifting into tangents the way an open-ended call does. Thirty minutes specifically covers most calls that need more than a quick check-in but shouldn't need a full hour: enough room for genuine back-and-forth on a few points, short enough that neither side is quietly hoping it wraps up soon. If you use it visibly on a screen share, it also gives you a neutral way to flag 'we have about ten minutes left' without checking a watch mid-sentence.
What kind of cooking needs a thirty-minute timer?
Thirty minutes is a common length for a single simmering or braising stage within a longer recipe — reducing a sauce, simmering a stew before the vegetables go in, or letting a braise tenderize partway through a longer cook — rather than the full cook time of most dishes, which often run considerably longer. The reason a timer matters even for a stage you're mostly ignoring is that thirty minutes is long enough to genuinely forget about, especially once you've moved on to prepping something else, and a burnt-on pot from a five-minutes-too-long simmer is a common and avoidable kitchen mistake. Set it the moment the stage actually starts, not when you first put something on the stove.