Vendor dependencies

notes-service/vendor/croner/examples/timezone_demo.rs

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+use std::str::FromStr as _;
+
+use chrono::Utc;
+use chrono_tz::Tz;
+use croner::Cron;
+
+fn main() {
+    // Parse cron expression
+    let cron = Cron::from_str("18 * * * 5").expect("Couldn't parse cron string");
+
+    // Find the next occurrence in Europe/Stockholm
+    let now_stockholm = Utc::now().with_timezone(&Tz::Europe__Stockholm);
+    let next_stockholm = cron.find_next_occurrence(&now_stockholm, false).unwrap();
+
+    // Output results for Europe/Stockholm
+    println!("UTC time is: {}", &Utc::now());
+    println!("Time in Europe/Stockholm time is: {}", &now_stockholm);
+    println!(
+        "Pattern \"{}\" will match next time at (Europe/Stockholm): {}",
+        cron.pattern, next_stockholm
+    );
+}