diff --git a/src/wp-includes/formatting.php b/src/wp-includes/formatting.php
index f7d248294c..0be917d565 100644
--- a/src/wp-includes/formatting.php
+++ b/src/wp-includes/formatting.php
@@ -3486,16 +3486,16 @@ function _wp_iso_convert( $match ) {
 }
 
 /**
- * Returns a date in the GMT equivalent.
+ * Given a date in the timezone of the site, returns that date in GMT timezone.
  *
  * Requires and returns a date in the Y-m-d H:i:s format.
  * Return format can be overridden using the $format parameter.
  *
  * @since 1.2.0
  *
- * @param string $string The date to be converted.
+ * @param string $string The date to be converted, in the timezone of the site.
  * @param string $format The format string for the returned date. Default 'Y-m-d H:i:s'.
- * @return string GMT version of the date provided.
+ * @return string Formatted version of the date provided in GMT timezone.
  */
 function get_gmt_from_date( $string, $format = 'Y-m-d H:i:s' ) {
 	$datetime = date_create( $string, wp_timezone() );
@@ -3508,16 +3508,16 @@ function get_gmt_from_date( $string, $format = 'Y-m-d H:i:s' ) {
 }
 
 /**
- * Converts a GMT date into the correct format for the blog.
+ * Given a date in GMT timezone, returns that date in the timezone of the site.
  *
  * Requires and returns a date in the Y-m-d H:i:s format.
  * Return format can be overridden using the $format parameter.
  *
  * @since 1.2.0
  *
- * @param string $string The date to be converted.
+ * @param string $string The date to be converted, in GMT timezone.
  * @param string $format The format string for the returned date. Default 'Y-m-d H:i:s'.
- * @return string Formatted date relative to the timezone.
+ * @return string Formatted version of the date provided in the site's timezone.
  */
 function get_date_from_gmt( $string, $format = 'Y-m-d H:i:s' ) {
 	$datetime = date_create( $string, new DateTimeZone( 'UTC' ) );