Skyclock

The time, painted by the sky.

Skyclock replaces your new tab with a world clock. Every place you add becomes a column lit by its own local hour — indigo at midnight, pink at sunrise, pale blue at noon — so you read the day before you read the numbers.

Add to Chrome See what it does

For Chrome and Chromium browsers. Works offline, always.

Live This is the extension, running here — your own time zone first, ticking. Drag sideways across the columns to travel in time, or press + to add a place. Nothing you do is sent anywhere.

What it does

Six things, done properly.

  • Time travel

    Drag sideways across the board to scrub the hour, or click a clock and type a time — every other place recalculates, daylight saving and all.

  • About 1,500 cities

    Search by city, country, region or alias. “vegas”, “NYC”, “bombay” and “saigon” all land, and results show each city’s current local time.

  • Offline by design

    No accounts, no servers, no network requests. The timezone maths runs on the browser’s own Intl API.

  • Up to seven places

    Seven live columns, each its own colour. Hover one to change or remove it in place.

  • 12 or 24 hour

    One toggle, and the whole board reads the way you think.

  • West to east

    Sort by UTC offset so the day runs left to right, or drag the columns into an order of your own.

Privacy

Nothing leaves your machine.

Skyclock is a self-contained page. It has nowhere to send anything, because it never opens a connection.

  • No accounts. There is nothing to sign in to.
  • No servers to sync to. The extension has no backend, and no account to attach one to.
  • No network requests of any kind — not one, ever.
  • No analytics, no telemetry, no tracking pixels, no third-party code.
  • Your places and preferences live in chrome.storage.local, on your own computer.
  • Time zones are computed by the browser’s built-in Intl API, offline.

The whole policy is one short page: read the privacy policy.

Where this came from

With thanks to FIO.

Skyclock is not an original idea. It is an attempt to keep one alive.

FIO did this first, and did it perfectly — well enough that for years there was no reason for anything like Skyclock to exist. Had it still been running, this would never have been built. It wasn’t, so it was.

The debt is in the source rather than only in the credits. The globals are still called FIO_CITIES and FIO_GRADIENT, your places are still saved under keys beginning fio., and the repository is still named after it. Renaming all that would have been tidier. It would also have been a small act of forgetting.