A few months ago I visited Google with a simple question: how many trading days are left this year? I figured this was a simple ask that would be easily answered - but I was wrong. Google's AI response was clearly incorrect, and all the top search results were for confusing or neglected websites that had the wrong answer as well. So I built this accurate, one-page website that answers my question. HowManyTradingDays: A live countdown of the number of stock market trading days left this year.