A real-time visualization of global stock exchange trading hours — converted automatically to wherever you are right now. No configuration. No mental math. The answer is on screen before you finish loading the page.
Why it exists
I built a prototype for NYSE because I hold Tesla and Palantir and needed to know — from my home in the Philippines — when the New York Stock Exchange was open. The prototype solved that problem. The expansion to 30 global exchanges came after: if this works for NYSE, the same friction exists for anyone holding positions across markets in different timezones.
Help anyone, anywhere, understand the rhythm of global markets at a glance in their local time.
The Northstar captures it exactly. The product is for humans making manual timing decisions — traders in Manila checking London hours, investors in Copenhagen watching US pre-market, anyone who has ever done the mental arithmetic of "NYSE opens at 9:30 ET, I'm UTC+8, that's..." and wished they didn't have to.
What it does
Thirty exchanges across Asia-Pacific, Europe, and the Americas. Each one shows its current status — Main Session, Pre-Market, Post-Market, Opening Soon, Closed — updating every second, in your local timezone. The product arrives on the page and immediately shows your local time. There is no landing page to dismiss first, no signup gate, no configuration step. The answer is already there.
A global overlap bar runs across the top: a continuous 24-hour gradient showing how many of your selected exchanges are open simultaneously at each hour of your day. It is a count visualization, not a liquidity claim — but it is enough to see at a glance when the interesting windows are.
v4.28.0 added a morning momentum window overlay for NYSE and NASDAQ — the 30 to 90 minute window after the open where directional flow from the overnight order queue tends to resolve before midday chop begins. v4.26.0 added close-event alerts: browser notifications N minutes before a main session or post-market close, so an Asian-based trader can set an alert and stop watching the clock. Eighteen languages, including Arabic with full right-to-left support. Holiday and early-closure detection for every exchange. Settings persist between visits.
When you come to the website it shows your local time always, so you don't have to calculate when the other exchanges are open — that is done automatically. You can see it visually. That is your immediate value.
Current state
v4.30.1 is live at tradeti.me. The codebase runs on React 18 and Tailwind CSS with a zero-build-step architecture — no npm install, no bundler, everything runs directly in the browser. A Python-based test suite covers 4,712 tests across static and integration checks. The product is in open beta, donation-supported, with a paid tier in development.
The test suite, the comprehension-gate redesign shipped in v4.30.0, and the paired-feature-branch development discipline are all part of something larger: TradeTi.me is the first product of NJ Solo Co, and the operational machinery being built here — the marketing engine, the AI agent workflows, the publishing discipline — is the transferable asset across everything that follows.
What's next
First paid tier — broker affiliate integration and a premium features layer for active traders. Per-exchange landing pages for long-tail search (NYSE hours in Manila, LSE Christmas closures, and a hundred similar queries where the tool is exactly the right answer and nobody else has built the page). A mobile app and browser extension are planned.
The marketing engine is already running: a daily discovery process scanning trading communities for people with the exact friction the tool was built to remove.