20 Minute Timer

A 20 minute online countdown timer for power-naps, focused study sprints, and short Pomodoro alternatives. Notifies you when the block ends.

Countdown timer

Quick utility for focus sprints or breaks — runs in the browser.

Channels
Browser (off)
Remaining
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Twenty minutes is the longest power-nap that does not crash you into deep sleep — past that, the body starts on a full 90-minute cycle and waking up halfway leaves you groggy. It is also a popular Pomodoro alternative for people who find the classic 25 minutes a touch too long, and the standard slot for a NASA-style work-recovery block. This page sets a 20 minute timer that runs server-side, so the notification fires whether the page is open, the laptop is closed, or you have drifted off entirely. Pick a channel — Telegram for chat-style pings, browser push for system tray, email for the catch-all — and the alert reaches you the second the block ends. Label the timer ("power nap", "chapter draft", "language drill") so the notification carries that label. Neighbouring durations: 15 and 25 minutes are one click away if 20 feels short or long. Save the timer as a recurring reminder if a 20-minute block is part of your daily rhythm.

FAQ

Is 20 minutes good for a power nap?
Yes. Twenty minutes is the textbook power-nap length: long enough to refresh, short enough to avoid sleep inertia. Past 20 minutes you risk waking from deep sleep, which leaves you groggy.
Will the timer fire if I fall asleep?
Yes. The countdown is scheduled server-side, so the notification arrives via Telegram, push, or email regardless of the device's screen state.
Can I use it as an alternative Pomodoro length?
Yes. Some people prefer 20/5 over the classic 25/5 — slightly shorter focus blocks with the same short breaks. Works well for high-distraction days.
Can I save it as a recurring 20-minute block?
Yes. After running once, save the timer as a daily or weekday recurring reminder.

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