Show HN: What time is it in Corporate

Three months ago someone posted a site that showed time in corporate [1]

The most interesting comment to me was about the National Retail Federation 4-5-4 calendar. That calendar was hard to understand, so I made a visualization of it. I also implemented the other calendar types people were asking for.

I did find the SEC dataset of 10032 publicly traded companies [2][3], but have not finished implementing a search for symbol yet.

[1] https://www.sec.gov/files/company_tickers.json