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Set the focus duration and start, pause and continue countdown on the current page.

25:00

Closing or leaving the page will end the timer; background tabs may be delayed in refreshing, and will be corrected according to the end time when returning. Notification permission will not be requested.

Instructions for use

  1. Set the duration of this round from 1 to 180 minutes.
  2. Click to start timing; pause if necessary, and click to continue.
  3. Take a break after the timer ends, or reset to start the next round; the timer will not continue if you leave the page.

Input and output examples

Example input
25 min
Example output
25:00 → 00:00

These are demo inputs and sample results, and do not mean that your data has been processed.

Calculation basis and reference materials

The timing depends on the current page and will be reset when leaving or refreshing. Do not apply for system notification permission, and correct the remaining time when the background is restored.

Content check: · About this site and content description

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