Macro time 

time!() { /* proc-macro */ }

Compile time as time::Time.

Example

const COMPILE_TIME: time::Time = compile_time::time!();

let hour = COMPILE_TIME.hour();
let minute = COMPILE_TIME.minute();
let second = COMPILE_TIME.second();
println!("Compiled at {hour:02}:{minute:02}:{second:02}.");