diff --git a/src/offset/utc.rs b/src/offset/utc.rs
index 812d7b062e..551e53f40d 100644
--- a/src/offset/utc.rs
+++ b/src/offset/utc.rs
@@ -68,7 +68,7 @@ impl Utc {
         let now =
             SystemTime::now().duration_since(UNIX_EPOCH).expect("system time before Unix epoch");
         let naive =
-            NaiveDateTime::from_timestamp_opt(now.as_secs() as i64, now.subsec_nanos() as u32)
+            NaiveDateTime::from_timestamp_opt(now.as_secs() as i64, now.subsec_nanos())
                 .unwrap();
         DateTime::from_utc(naive, Utc)
     }