KJM.ONE

Ojikan

Your time, calmly kept.

Overview

Ojikan (Japanese お時間, o-jikan - "your time", with the polite honorific) is a clock and countdown timer that runs entirely in your browser. Use it as a wall clock on a spare screen, or as a countdown for focus sessions, meetings, and talks. There is nothing to install and no account to make: open it and it works.

The clock

Ojikan opens on the clock: the current time, set large and legible enough to read across a room. In Settings you can switch between the 24-hour and 12-hour formats, show or hide the seconds, and show or hide the date.

The timer

Switch to the countdown with the Timer tab at the top. There are two ways to set the time, and you can mix them freely:

  • Type any duration - tap the big time and enter minutes (25), minutes and seconds (1:30), or hours, minutes and seconds (1:05:00), up to 99:59:59.
  • Tap a preset - the chips below the time are one-tap durations, and they are yours to change: tap Edit, then tap a chip to remove it, or type a number of minutes and press Add. Press Done when you have the set you want.

Press Start to run the countdown; the same button becomes Pause and then Resume. Reset returns to the duration you set. The single line under the numbers is the time remaining - it empties as the countdown runs, and the marks along it are the quarter points, so a glance tells you roughly how much is left without reading the digits.

When the time is up the numbers turn red, the label reads Time's up, and a chime sounds for about half a minute before falling silent. The finished timer stays on screen until you dismiss it.

The countdown is anchored to the actual clock rather than to a tick counter, so it stays honest: it ends at the right moment even if the browser slows the tab down in the background, or the machine sleeps and wakes in the middle. While a timer runs, Ojikan also asks the system to keep the screen awake, so the display does not dim mid-countdown.

Keyboard

  • Space - start or pause the timer.
  • R - reset it.
  • Left and Right arrows - move between Clock and Timer while the tabs have focus.
  • Escape - close the settings panel.

Space and R work whenever the timer is on screen. If single-key shortcuts get in your way - with speech input, for instance - turn them off with the "Keyboard shortcuts" setting.

Settings

The gear in the top right opens the settings: the theme (automatic, light, or dark), the 12-hour clock, seconds, the date, the alarm sound and its volume, a notification when the timer ends, and the keyboard shortcuts. Turning on notifications asks for the browser's permission at that moment - never before.

Saving and sharing a setup

Ojikan keeps nothing on your device - no cookies, no stored settings. Instead, the whole setup lives in the link. Change a setting and the address in your browser updates to match, which makes a few useful things fall out for free:

  • Bookmark it and the bookmark reopens that exact setup - your timer length, your theme, your presets.
  • Copy setup link at the bottom of the settings panel puts that address on your clipboard.
  • Send it to someone and it sets up their session without touching any preference of theirs.
  • The tab title names the setup - "Ojikan - Timer 30:00" - so a folder of bookmarks stays readable.

You can also write a link by hand, by adding one of these to the end of the address:

  • #mode=timer&duration=25 - a 25-minute timer.
  • #mode=timer&duration=1:30&theme=dark - a 90-second timer, dark.
  • #theme=light&clock=12 - the clock, light, 12-hour.
  • #mode=timer&presets=5,15,50 - your own preset chips.

A link carries your setup, not a running countdown: bookmarking a timer with four minutes left reopens it idle at its full length, ready to start again.

Offline and on your home screen

After the first visit Ojikan keeps a copy of itself in the browser, so it opens and runs with no connection at all. Your browser can also install it as an app - "Add to Home Screen" on a phone, or the install control in the address bar on a desktop - and there is a fullscreen button for when the clock is the only thing you want on the screen.

Privacy

No accounts, no tracking, no analytics in the page, and no cookies or stored settings: your setup travels in the link and nowhere else. Two deliberate traces remain, and neither holds any of your configuration - the offline copy of Ojikan's own files, and the browser permission you grant if you switch notifications on. As with any website, the server that serves it keeps standard access logs.

Open Ojikan

Ojikan is free to use and needs no sign-up.