diff --git a/src/net/http/cookiejar/jar.go b/src/net/http/cookiejar/jar.go
index 097c93a137..3d0ad19af0 100644
--- a/src/net/http/cookiejar/jar.go
+++ b/src/net/http/cookiejar/jar.go
@@ -214,8 +214,8 @@ func (j *Jar) cookies(u *url.URL, now time.Time) (cookies []*http.Cookie) {
 		if len(s[i].Path) != len(s[j].Path) {
 			return len(s[i].Path) > len(s[j].Path)
 		}
-		if !s[i].Creation.Equal(s[j].Creation) {
-			return s[i].Creation.Before(s[j].Creation)
+		if ret := s[i].Creation.Compare(s[j].Creation); ret != 0 {
+			return ret < 0
 		}
 		return s[i].seqNum < s[j].seqNum
 	})
diff --git a/src/net/http/fs.go b/src/net/http/fs.go
index cf80018b5e..3feef8f2b0 100644
--- a/src/net/http/fs.go
+++ b/src/net/http/fs.go
@@ -431,7 +431,7 @@ func checkIfUnmodifiedSince(r *Request, modtime time.Time) condResult {
 	// The Last-Modified header truncates sub-second precision so
 	// the modtime needs to be truncated too.
 	modtime = modtime.Truncate(time.Second)
-	if modtime.Before(t) || modtime.Equal(t) {
+	if ret := modtime.Compare(t); ret <= 0 {
 		return condTrue
 	}
 	return condFalse
@@ -482,7 +482,7 @@ func checkIfModifiedSince(r *Request, modtime time.Time) condResult {
 	// The Last-Modified header truncates sub-second precision so
 	// the modtime needs to be truncated too.
 	modtime = modtime.Truncate(time.Second)
-	if modtime.Before(t) || modtime.Equal(t) {
+	if ret := modtime.Compare(t); ret <= 0 {
 		return condFalse
 	}
 	return condTrue