diff --git a/src/main.rs b/src/main.rs
index 126042c..7d86200 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -120,7 +120,8 @@ fn perform_handshake() -> Result<u128> {
 
 #[derive(Serialize)]
 struct Record {
-    time: u128,
+    time: u64,
+    duration: u128,
 }
 
 fn main() -> Result<()> {
@@ -128,7 +129,8 @@ fn main() -> Result<()> {
 
     for _ in 0..SAMPLE_SIZE {
         wtr.serialize(Record {
-            time: perform_handshake()?,
+            time: SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs(),
+            duration: perform_handshake()?,
         })?;
     }