Sdate in rust

sdate.rs

extern crate chrono;
use chrono::{TimeZone, Utc};

fn count_days_since_sdate() -> u64 {
    let utc = Utc;
    let now = Utc::now();
    let sept_date = utc
        .datetime_from_str(&"Sept 01 00:00:01 1993", "%b %d %H:%M:%S %Y")
        .unwrap();
    let duration_since_sdate = now.signed_duration_since(sept_date);
    duration_since_sdate.num_days().try_into().unwrap()
}

fn main() {
    println!("Today is: Sept {} 1993", count_days_since_sdate())
}