I've written a ton of Java and I'd find this handy for datetime stuff. Even though I don't use it for my work anymore, I still pull out Java when I need to answ

I've written a ton of Java and I'd find this handy for datetime stuff. Even though I don't use it for my work anymore, I still pull out Java when I need to answer questions like what day is 90 days from now because java.time.* is very well designed. Instead of just using the shell, this makes things a little nicer with less ceremony if I want to do these date calculations in a local file.