30 Minute Timer
← All preset timersA tray goes in the oven and someone says thirty minutes. The number is so ordinary that it barely registers as a choice, which is exactly why it gets set more than almost anything else. It is the default slot in calendar software, the usual cap on a screen-time deal, a common first proving stage for dough, and the length of a workout that has to happen before work. Half an hour is short enough that nobody argues about it and long enough for something to actually finish inside it. The risk sits in that same ordinariness: thirty minutes judged by memory has a habit of becoming forty.
Screen kept awake while this runs
Ends with an audible alarm — keep this tab's sound unmuted. A running countdown keeps counting in a background tab and picks itself back up if you reload.
Open this page with the timer already running → — handy as a bookmark, though your device only lets a page make a sound after you have tapped it at least once.
Why 30 minutes
Thirty also splits cleanly, which is where a lot of its use comes from. Two fifteens make a warm-up and a working set, three tens make a rotation of exercises or subjects, six fives make a drill. This page counts the whole block down in one run and rings once at the end. If you want the internal switches marked as well, the interval timer alternates work and rest rounds for you.
What people set it for
- A half-hour workout
- Roasting and baking stages
- Boxing a meeting to its slot
- A homework or revision block
- Screen-time limits for children
- A first proving stage for dough
FAQ
- Can I split thirty minutes into two halves?
- Not on this page, which counts one continuous block down to zero. Run it twice for two fifteen-minute halves, or use the interval timer, which alternates a work length and a rest length for a set number of rounds and sounds a chime at every switch. For a plain half hour with a single alarm at the end, this page is the simpler option.
- Why not just use the oven timer?
- Oven timers only count for the oven, and most of them only run one thing at a time. A browser timer sits wherever you already are, can be started from a phone propped against the counter, and leaves the appliance dial free for whatever it was already timing. Nothing is installed and nothing is stored on a server, so any device that opens the page has it.
- Is it suitable for a child screen-time limit?
- It works for that, with one caveat: the alarm sounds in the tab running it, so a muted or closed tab rings nothing. On the other hand, nothing about the session is uploaded or kept on a server, so there is no account to make, no history to manage and nothing to sign into. It is a countdown that anyone can start with one tap.
