diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/function/server/ServerResponse.java b/spring-webflux/src/main/java/org/springframework/web/reactive/function/server/ServerResponse.java
index acc617f992..3990342462 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/function/server/ServerResponse.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/function/server/ServerResponse.java
@@ -284,8 +284,6 @@ public interface ServerResponse {
 		/**
 		 * Set the time the resource was last changed, as specified by the
 		 * {@code Last-Modified} header.
-		 * <p>The date should be specified as the number of milliseconds since
-		 * January 1, 1970 GMT.
 		 * @param lastModified the last modified date
 		 * @return this builder
 		 * @see HttpHeaders#setLastModified(long)