Chrome extension · Free

The market clock, always one click away

Candle-close countdowns, funding payment timers and market sessions — live in Chrome's side panel, next to whatever you're doing. The tab every trader keeps open, without the tab.

Chrome Web Store listing pending review — until then, install in 30 seconds with the steps below.

Tessen Market Clock side panel showing live candle close countdowns, funding timers and market session status
Candle closes
Every timeframe, one glance

Live countdowns to the next 15m, 1H, 4H, daily, weekly and monthly candle close — UTC-aligned exactly like Binance, Bybit, OKX and TradingView. If your strategy acts on closed candles, this is the clock it runs on.

Funding
Know when the payment hits

The next funding timestamp on the standard 8h grid (00/08/16 UTC — Binance, Bybit, OKX, Bitget) and the hourly venues (Hyperliquid, Coinbase INTX). Hold through the timestamp and you pay for the full interval.

Sessions
Who's at their desk right now

Sydney, Tokyo, London, New York and CME crypto futures — open or closed, and how long until that changes. Computed from each desk's local clock, so daylight-saving shifts are always already applied.

Badge
Useful even when closed

The toolbar icon itself shows a live countdown to the next 4H candle close. Pin it and you have a market clock in your browser chrome without opening anything.

Tessen Market Clock — candle closes, funding payments and sessions, live in your side panel
New Tab edition

Prefer it on every tab you open?

The New Tab edition replaces Chrome's new-tab page with the full market clock — big UTC time, candle closes, funding and sessions, every time you open a tab. Same local-only math, and this one requests zero permissions. Install both; they don't conflict.

Download New Tab edition (.zip)
Tessen Market Clock New Tab edition — full-screen market clock with candle closes, funding timers and sessions

Private by construction, not by promise

The extension makes zero network requests. Every timer is computed locally from your system clock — the same UTC candle grid, funding schedules and DST-correct session math as our web tools. No account, no analytics, no tracking, and no data permissions requested, because there's no data it wants. You can verify this yourself: the unzipped source is a few hundred lines of plain JavaScript.

Install in 30 seconds

  1. Download the extension and unzip it.
  2. Open chrome://extensions and switch on Developer mode (top right).
  3. Click Load unpacked and select the unzipped folder.
  4. Pin the icon (puzzle piece → pin), then click it — the clock opens as your side panel.

Works in Chrome 114+ and Chromium browsers with side-panel support (Edge, Brave). The Web Store listing will replace steps 2–3 with one click once approved.

The clock tells you when the candle closes. Whether the strategy trading it has an edge is a different question — the one we built the grader for.

Grade your strategy — free