[sesm]

> chrono in Rust and Joda Time in Java

Those are from different time epochs, by the time Rust 1.0 was released, Java already had this approach implemented in standard library via java.time and didn't need any 3rd party libraries for this.

[jillesvangurp]

Java.time basically is based on joda time and aside from slightly different package names is largely the same thing. That happened to more parts of the Java API. The concurrent package also started out as a standalone library.

Joda time has inspired spinoffs on lots of platforms. Including js-joda for the javascript ecosystem. I'm not sure how much the new Temporal approach is based on that but it wouldn't surprise me that that was one of the starting points for the new standard.