Pomodoro Study Timer

This timer defaults to 25 minutes of focused work followed by a 5-minute break — you can adjust work from 1 to 60 minutes and breaks from 1 to 30 minutes using the +/− controls. The 25-minute default isn't arbitrary: attention researchers describe a "vigilance decrement" — a measurable drop in sustained focus that tends to set in after roughly 20–30 minutes on a single task. A short, mandatory break resets that decline before it compounds, which is why the interval sits where it does rather than at, say, 90 minutes.

25 minutes isn't universal, though. For reading-heavy or highly analytical work (proof-based math, essay drafting) many students find 45–50 minute blocks with a 10-minute break work better, since repeatedly breaking mid-thought during deep work can cost more time in re-orientation than it saves in fatigue reduction. Use the settings panel to push the work slider toward 45–50 if you notice you're just hitting your stride when the ping interrupts you.

The break is doing real cognitive work, not just filling time — but only if it's genuinely restorative. Scrolling social media during your 5 minutes keeps the same attention systems engaged (rapid visual switching, novelty-seeking) that studying does, so you come back just as depleted. Attention Restoration Theory suggests low-stimulation breaks — standing up, stretching, looking out a window, getting water — let the directed-attention systems you just taxed actually recover. If your break routinely leaves you feeling more scattered than when it started, that's a sign to swap the activity, not the timer length.

The four dots above the settings track your Pomodoros in the current cycle and reset every 4 completed sessions — but the timer itself doesn't automatically lengthen your break on the 4th one. That's deliberate: you have to notice the dots filling up and choose to take a longer break yourself. The classic Pomodoro recommendation is to stretch that 4th break to 15–30 minutes instead of your usual 5 — a good rule of thumb is to increase the break duration setting temporarily whenever you see all four dots lit, then set it back to your normal short-break length for the next cycle.