diff --git a/src/main.rs b/src/main.rs
index ba85fa3..c13f004 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,7 +1,14 @@
+use std::time::Instant;
+
 mod common;
 mod day09;
 
 fn main() {
     println!("Executing main entrypoint . . . ");
+    let now = Instant::now();
+    
     day09::part_one();
+
+    let elapsed = now.elapsed();
+    println!("Execution in {:?}.", elapsed);
 }