diff --git a/library/core/src/time.rs b/library/core/src/time.rs
index 179fbabaddeb..0390bb59a898 100644
--- a/library/core/src/time.rs
+++ b/library/core/src/time.rs
@@ -617,8 +617,6 @@ pub const fn as_nanos(&self) -> u128 {
     ///
     /// # Examples
     ///
-    /// Basic usage:
-    ///
     /// ```
     /// use std::time::Duration;
     ///
@@ -640,8 +638,6 @@ pub const fn abs_diff(self, other: Duration) -> Duration {
     ///
     /// # Examples
     ///
-    /// Basic usage:
-    ///
     /// ```
     /// use std::time::Duration;
     ///
@@ -700,8 +696,6 @@ pub const fn saturating_add(self, rhs: Duration) -> Duration {
     ///
     /// # Examples
     ///
-    /// Basic usage:
-    ///
     /// ```
     /// use std::time::Duration;
     ///
@@ -758,8 +752,6 @@ pub const fn saturating_sub(self, rhs: Duration) -> Duration {
     ///
     /// # Examples
     ///
-    /// Basic usage:
-    ///
     /// ```
     /// use std::time::Duration;
     ///
@@ -814,8 +806,6 @@ pub const fn saturating_mul(self, rhs: u32) -> Duration {
     ///
     /// # Examples
     ///
-    /// Basic usage:
-    ///
     /// ```
     /// use std::time::Duration;
     ///