Skip to content

Timer, Stopwatch & Pomodoro

A countdown timer, a stopwatch with laps, and a 25/5 Pomodoro. It rings and notifies when time is up, and the remaining time shows in the tab title.

It keeps accurate time even in a background tab (it works from the end time). Reloading resets it, and nothing is sent or stored.

FAQ

I hear no sound.

Browsers block sound until you interact with the page. Press Start with "Play a sound" checked, and make sure your device is not muted.

What happens if I close the tab?

The timer runs inside this page, so closing or reloading it stops the timer. Switching to another tab is fine.

What is Pomodoro?

A time-management method: work for 25 minutes, rest for 5, repeat, and take a longer 15-minute break after four sessions. You can change the lengths above.

How to use this tool

Use it to time studying, workouts or cooking. Tabs: countdown timer, stopwatch with laps, a Pomodoro (25 minutes focus, 5 minutes rest) and breathing practice. It signals the end with sound and a notification, and shows the remaining time in the tab title.

Frequently asked questions

What is Pomodoro?

A time-management method that repeats 25 minutes of focus and 5 minutes of rest. This tool is set to 25 minutes of focus and 5 minutes of rest.

How does it tell me time is up?

With sound and a notification, and the remaining time is shown in the tab title so you can check it while on another tab.

Can the stopwatch record laps?

Yes. The lap function records split times.

See all tools

Time Zones & World Clock

See the current time in many cities at a glance, and convert a meeting time to other time zones. Daylight saving time is handled automatically.

Weekly Timetable

Build a weekly timetable from day and time blocks, save it as an image (PNG), or turn it into a weekly repeating calendar file (.ics) for Google or Apple Calendar with holidays skipped.

Weather & air quality

See the current weather, a 5-day forecast and particulate matter (PM2.5 / PM10) for major cities or places you saved.

Age & Date Calculator

Korean legal age, D-day, 100-day and yearly anniversaries, the span between two dates, N days or months later, and business days excluding holidays.

Lunar Calendar

Convert between solar and lunar dates, browse a lunar calendar with leap months, sexagenary names, solar terms and holidays, and find the solar dates of lunar anniversaries.

Hangul Fixer

Fix Korean text and file names made on a Mac that appear as separated jamo or garbled on Windows. Supports NFD↔NFC conversion, jamo joining/splitting, batch file-name conversion and encoding-mismatch recovery.