Phases Of Moon - calculate when the next Full Moon will be
I have been using https://metacpan.org/pod/Astro::MoonPhase since 2007 in a small perl wrapper called pom.
I thought that I should port it to Rust and this is my first attempt. It was surprisingly easy. I expect that it might be possible to automate porting many perl modules to Rust.
perl> time pom # ver. 0.2
real 0m0.022s
user 0m0.022s
sys 0m0.000s
rust> time pom # ver. 0.3
real 0m0.002s
user 0m0.002s
sys 0m0.001s