diff --git a/src/wp-includes/class-wp-locale.php b/src/wp-includes/class-wp-locale.php
index 2c42e3a8c7..81a80a59f0 100644
--- a/src/wp-includes/class-wp-locale.php
+++ b/src/wp-includes/class-wp-locale.php
@@ -254,8 +254,8 @@ class WP_Locale {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param int $weekday_number 0 for Sunday through 6 Saturday
-	 * @return string Full translated weekday
+	 * @param int $weekday_number 0 for Sunday through 6 Saturday.
+	 * @return string Full translated weekday.
 	 */
 	public function get_weekday( $weekday_number ) {
 		return $this->weekday[ $weekday_number ];
@@ -271,8 +271,8 @@ class WP_Locale {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param string $weekday_name
-	 * @return string
+	 * @param string $weekday_name Full translated weekday word.
+	 * @return string Translated weekday initial.
 	 */
 	public function get_weekday_initial( $weekday_name ) {
 		return $this->weekday_initial[ $weekday_name ];
@@ -286,8 +286,8 @@ class WP_Locale {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param string $weekday_name Full translated weekday word
-	 * @return string Translated weekday abbreviation
+	 * @param string $weekday_name Full translated weekday word.
+	 * @return string Translated weekday abbreviation.
 	 */
 	public function get_weekday_abbrev( $weekday_name ) {
 		return $this->weekday_abbrev[ $weekday_name ];
@@ -306,8 +306,8 @@ class WP_Locale {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param string|int $month_number '01' through '12'
-	 * @return string Translated full month name
+	 * @param string|int $month_number '01' through '12'.
+	 * @return string Translated full month name.
 	 */
 	public function get_month( $month_number ) {
 		return $this->month[ zeroise( $month_number, 2 ) ];
@@ -321,8 +321,8 @@ class WP_Locale {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param string $month_name Translated month to get abbreviated version
-	 * @return string Translated abbreviated month
+	 * @param string $month_name Translated month to get abbreviated version.
+	 * @return string Translated abbreviated month.
 	 */
 	public function get_month_abbrev( $month_name ) {
 		return $this->month_abbrev[ $month_name ];