Pomodoro timer
Work 25 minutes, rest 5, repeat. Change the lengths and rounds freely; a chime marks each switch.
Open PomodoroPomo Clock (集中時計) — a free web app by Mihata
Open it, and the screen is ready for focus.
Pomo Clock is a clock app that runs in your browser. Timers, focus music and your favourite background live on one quiet screen. On work days, connect Google Calendar and it will remind you before each meeting.
- Free
- No sign-up
- No install
- PC, phone & tablet
Three ways to time
Pick the timer that fits your rhythm
Timer
Presets like 3, 15 or 60 minutes, or just type a number. You can run several timers at once.
Open Timer
Stopwatch
A stopwatch with laps, for when you simply want to measure how long something takes.
Open StopwatchA place to focus
Set the sound and the scenery on one screen
Backgrounds
Solid colours, photos or videos — or your own photo.
Focus music & ambience
Campfire, rain, café, piano and more, playing alongside your timer.
YouTube playback
Play your usual work playlist in a small player next to the clock.
Weather
Current weather and temperature beside the clock, with an hourly forecast.
Fonts & layout
Six typefaces, adjustable size, and optional seconds and date.
Focus log
Track focused time per day. The log stays on this device only.
集中時計 for Business — Pomo Clock for Business (Beta)
Your clock tells you before each meeting
Connect Google Calendar to see today's events under the clock and get a full-screen alert a few minutes before each meeting — so you never miss one while you're focused.
Next event under the clock
Shows your next event in one line, like "15:00 Weekly sync — in 12 min".
Full-screen alert before it starts
Choose how many minutes ahead. It chimes until you dismiss it and shows a join button for Google Meet, Zoom or Teams.
Several accounts in one view
Connect up to six Google accounts, such as work and personal. A meeting you were invited to on two accounts shows once.
See today's free time
A bar shows the gaps between meetings in your working hours, with the total time left for focused work.
How to use it
- 1Open Pomo Clock, click the gear (Settings) in the toolbar at the bottom, and turn on “Enable business features (Beta)” at the very end
- 2Open “Business” in the toolbar and click “Connect Google Calendar”
- 3Choose your Google account and allow read access to your events
- 4To use more accounts, add them the same way from “Add another account”
Google verification in progress
Until Google completes its review, a Google confirmation screen may appear while connecting. If it does, please check that the developer is mihata.jp before continuing.
How we handle Google user data
We only read events — Mihata never stores them
Here is what Pomo Clock reads through the Google Calendar integration and how it is handled. See section 9 of our Privacy Policy for details.
- What we read
- Only events from one hour ago to about 20 hours ahead on the primary calendar of each connected account (start and end time, title, location, conferencing link and your own response status), plus the account's email address so we can show which accounts are connected. We never write to your calendar.
- How it's used
- Solely to show your next event on the clock and to alert you before a meeting starts. Never for advertising, analytics or AI training, and never shared with third parties. No one at Mihata reads your event data.
- Where event contents go
- Your browser receives events directly from Google and processes them only in the browser. They are never sent to or stored on Mihata's servers.
- The key that keeps you connected
- The refresh token issued by Google is encrypted by Mihata's server and stored only in an HttpOnly cookie in your browser (unreadable by page scripts). It is not stored in any Mihata database.
- How to disconnect
- Use “Disconnect” in the Business panel at any time; this also revokes access on Google's side. You can also revoke it from “Third-party apps & services” in your Google Account.
Pomo Clock's use and transfer of information received from Google APIs to any other app will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
FAQ
Is it really free?
Yes. Every feature is free, with no sign-up or login (connecting Google Calendar only needs your permission in your Google account).
Does it work on phones and tablets?
Yes. Just open it in the browser on iPhone, iPad or Android. Add it to your home screen to use it full screen like an app, and keep the screen awake while it runs.
Where are my settings and logs stored?
Only in your browser (local storage). Nothing is sent to our servers, so clearing your browser data also clears them.
Will calendar changes show up?
Events are re-read every five minutes, and again when you return to the tab or wake your device, so new or moved meetings are picked up quickly.
Will the connection keep dropping?
Once connected, temporary network problems never disconnect you. Only a real disconnection, such as revoking access in Google, shows “connection lost” under the clock, where you can reconnect.
Can I use a company Google Workspace account?
Yes, unless your administrator restricts third-party apps. If so, please ask your administrator.
Operator
Pomo Clock is built and run by Mihata, a Japanese studio for web production and AI adoption. We made it for our own daily work and keep improving it based on what users tell us.
Try it now — it's free
No sign-up, no install. The screen you open in your browser becomes today's workspace.
Open Pomo Clock