This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Jan Marthedal Rasmussen
janmr.com
did:plc:vu6qczmz4fwvt5hylbxjlcd6
Low-Level Date Algorithms (year/month/day to day epoch and the reverse, among others) https://howardhinnant.github.io/date_algorithms.html #calendar #algorithms
2026-04-01T05:51:21.262Z