I'm not the person you're asking, but FWIW I first heard of it in connection with the Long Now Foundation > The Long Now Foundation uses five-digit dates, the

I'm not the person you're asking, but FWIW I first heard of it in connection with the Long Now Foundation > The Long Now Foundation uses five-digit dates, the extra zero is to solve the deca-millennium bug which will come into effect in about 8,000 years. https://longnow.org/about/ https://longnow.org/about/