---
title: "BLOCK CLOCK - Focus Timer – Chrome extension stats, history and permissions"
description: "105 users, rated 4.86 by 7 people. Version 2.0.0, updated 2025-08-18. Requests 6 permissions."
url: "https://extensiontracker.com/extension/dpaphncmnicljlnlohmebcedbfiodhck"
---

# BLOCK CLOCK - Focus Timer

Live in the Chrome Web Store.

- Users: 105
- Rating: 4.86 from 7 ratings
- Last checked: 2026-09-27 00:08 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #64,727 of 264,703 live extensions
- Rank in Workflow & Planning: #13,883 of 44,474

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Stay focused with 25-minute work sessions and 5-minute breaks. Automatically blocks distracting websites during work time.

- Extension ID: `dpaphncmnicljlnlohmebcedbfiodhck`
- Developer: [yuta.fujiwara1029](https://extensiontracker.com/developer/u6edce049420feff0786a5fc994625e74)
- Category: [Productivity › Workflow & Planning](https://extensiontracker.com/category/productivity/workflow)
- First published: 2018-04-24
- Last updated: 2025-08-18
- Version: `2.0.0`
- Size: 4.74 MiB
- Minimum Chrome: 88
- Languages (1): 日本語
- Website: `https://tech-portfolio.org/block_clock/`
- Support page: `https://docs.google.com/forms/d/e/1FAIpQLScCx3LGrTItBNOjFNKRWBpGOM5PNgrXncPYQqQapJEnXS65iw/viewform`
- Chrome Web Store: <https://chromewebstore.google.com/detail/block-clock-focus-timer/dpaphncmnicljlnlohmebcedbfiodhck>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fdpaphncmnicljlnlohmebcedbfiodhck>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 105 | 4.86 | 7 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `http://*/*`: Every website
- `https://*/*`: Every website

### Browser features

- `alarms`: Run tasks on a schedule
- `notifications`: Show notifications
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-27 00:08 UTC; next check around 2026-10-06.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “BLOCK CLOCK - Focus Timer” (dpaphncmnicljlnlohmebcedbfiodhck). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/dpaphncmnicljlnlohmebcedbfiodhck. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_dpaphncmnicljlnlohmebcedbfiodhck,
  title   = {BLOCK CLOCK - Focus Timer (dpaphncmnicljlnlohmebcedbfiodhck)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/dpaphncmnicljlnlohmebcedbfiodhck},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/dpaphncmnicljlnlohmebcedbfiodhck>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.