There's an old Microsoft tale related to the conflict between Excel's epoch of Jan 1 1900 vs Basic's Dec 31 1899: https://www.joelonsoftware.com/2006/06/16/my-

There's an old Microsoft tale related to the conflict between Excel's epoch of Jan 1 1900 vs Basic's Dec 31 1899: https://www.joelonsoftware.com/2006/06/16/my-first-billg-review/ https://www.joelonsoftware.com/2006/06/16/my-first-billg-rev...