# Trading Center Market Clock

This is a Notion-friendly static widget for scheduled market status and countdowns.

## What it tracks

- CME futures: `NQ / MNQ / GC / MGC`
- US equities: NYSE / Nasdaq
- London Stock Exchange
- Tokyo Stock Exchange / JPX

The widget shows one futures countdown and three global cash-market countdowns. Cash markets reorder automatically: currently open markets move left first; if none are open, the market closest to opening moves left.

## Data policy

The included data is scheduled exchange-calendar data, not a live outage feed. It handles regular hours, daily breaks, 2026 holidays, half-days, and selected 2027 rollover dates. It cannot know surprise exchange halts, broker-specific liquidation windows, data outages, or platform restrictions unless you connect a live status provider.

For fully automated future-year updates or real-time outage-aware status, the clean upgrade path is:

- CME Reference Data API for CME product-specific schedules. CME documents this as OAuth API access.
- TradingHours.com Market Status API for global exchange status and countdowns.

## How to use in Notion

Host this folder as a static site, then paste the public `index.html` URL into a Notion Embed block.

Good hosting options:

- GitHub Pages
- Netlify
- Vercel
- Cloudflare Pages

If you use an HTML widget wrapper such as Apption, use this `index.html` page as the content source or publish the folder and embed the hosted URL.

## Calendar sources

- CME E-mini Nasdaq-100 contract specs: https://www.cmegroup.com/markets/equities/nasdaq/e-mini-nasdaq-100.contractSpecs.html
- CME Gold contract specs: https://www.cmegroup.com/markets/metals/precious/gold.contractSpecs.html
- CME holiday and trading hours: https://www.cmegroup.com/trading-hours.html
- NYSE holiday calendar: https://www.nyse.com/markets/hours-calendars
- Nasdaq holiday hours: https://www.nasdaq.com/holiday-trading-hours
- London Stock Exchange business days: https://www.londonstockexchange.com/equities-trading/business-days
- Japan Exchange Group market holidays: https://www.jpx.co.jp/english/corporate/about-jpx/calendar/index.html
- HKEX 2026 securities market holiday circular: https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/SEHK/2025/ce_SEHK_CT_075_2025.pdf
- ASX trading calendar: https://www.asx.com.au/markets/market-resources/trading-hours-calendar/cash-market-trading-hours/trading-calendar