radialtimers.com
Fifty minutes of uninterrupted work, enough to get properly inside a hard problem. The dial gives up one ring every two and a half minutes and makes no sound until the closing chime, so checking your progress never breaks the quiet.
A fifty minute block is the length of a lecture and of a lot of university timetables, and it is about as long as most people can hold attention on one hard subject before the return on each extra minute drops. It is also long enough to finish something: a problem set, a chapter with notes, a full past-paper section. This page is a single block with no break built in, silent until the chime, and the dial gives up a ring every two and a half minutes.
Decide the one output for the block and write it at the top of the page: "finish questions 4 to 9", not "do maths". Put the phone in another room. Open the references you will need in tabs now, because the countdown keeps running in the background and there is no reason to leave the desk for a book later. Then start the timer and do not open anything else until the chime.
| Evening | Block 1 | Break | Block 2 |
|---|---|---|---|
| Exam week | Past paper section, timed | 10 minutes, walk | Mark it and rework the errors |
| Coursework | Reading with notes | 10 minutes, snack | Draft one section from the notes only |
| Language | Grammar exercises | 10 minutes | Listening, then speaking out loud |
Two blocks with a ten minute gap is 110 minutes, which is a serious evening. If you want the gap timed too, the 50/10 pomodoro runs the pair with chimes at each change.
Ten minutes away from the desk lets the block's material settle, and the next block starts clean. Stand, move, drink water, look at something far away. Do not open the feed: a ten minute scroll tends to become thirty and takes the next block with it. The 5 minute break timer is there if you want the rest to have a hard edge.
New material and dreaded subjects go better in the 25 minute block, where starting is cheaper. Essay drafting and coding can stretch to the 90 minute timer if you are already moving. The guide on study sessions that stick covers spacing blocks across a week.
This is a single 50 minute block with no break attached. The pomodoro 25+5 and 50/10 pages alternate work and rest on their own.
Yes. The countdown follows the clock, so notes and references in other tabs never put it behind, and the chime still sounds.
No. Nothing ticks or flashes while it runs; the rings drain quietly and the double chime at the end is the only sound.
Add it as a browser source in OBS; the background stays transparent. Change t for any length.
A radial timer is a free online countdown timer you set in one click: pick a length, press Start, and an alarm sounds at zero. Run several timers at once, take one fullscreen, or pop one out picture-in-picture to float over other apps. Every timer keeps counting in a background tab, and any timer exports as a video. No download, no sign-up.
Its dial draws the countdown as 20 concentric rings, one for each twentieth of the duration. Rings empty one by one, outermost first, so a glance shows how far along you are without reading a digit.
Yes. The countdown follows the clock, so it stays on time while you work in another tab and still chimes at zero. The picture-in-picture popout keeps a small dial in view the whole way.
Yes. Any timer exports as an MP4 or a transparent WebM of the whole countdown, up to 4K and 60 fps, in 16:9, vertical, or square.
Yes. In OBS, add a browser source pointing at radialtimers.com/overlay?t=25m and a transparent dial counts down over your scene. Change t for any length, like 90s or 3h.
As many as you need. Each timer gets its own dial and runs on its own, which suits interval workouts, several dishes on the stove, or a room of activity stations.