diff --git a/tests/phpunit/tests/external-http/basic.php b/tests/phpunit/tests/external-http/basic.php
index e34f4841ba..bb7415b2af 100644
--- a/tests/phpunit/tests/external-http/basic.php
+++ b/tests/phpunit/tests/external-http/basic.php
@@ -52,9 +52,10 @@ class Tests_External_HTTP_Basic extends WP_UnitTestCase {
 		 *
 		 * TODO: Reduce this back to 5 years once MySQL 8.0 compatibility is achieved.
 		 */
-		$mysql_eol = strtotime( $mysql_matches[1] . ' +8 years' );
+		$mysql_eol    = gmdate( 'Y-m-d', strtotime( $mysql_matches[1] . ' +8 years' ) );
+		$current_date = gmdate( 'Y-m-d' );
 
-		$this->assertLessThan( $mysql_eol, time(), "readme.html's Recommended MySQL version is too old. Remember to update the WordPress.org Requirements page, too." );
+		$this->assertLessThan( $mysql_eol, $current_date, "readme.html's Recommended MySQL version is too old. Remember to update the WordPress.org Requirements page, too." );
 	}
 
 	/**
@@ -84,9 +85,10 @@ class Tests_External_HTTP_Basic extends WP_UnitTestCase {
 		preg_match( '#.*Stable.*?(\d{2} [A-Za-z]{3} \d{4})#s', $response_body, $mariadb_matches );
 
 		// Per https://mariadb.org/about/#maintenance-policy, MariaDB releases are supported for 5 years.
-		$mariadb_eol = strtotime( $mariadb_matches[1] . ' +5 years' );
+		$mariadb_eol  = gmdate( 'Y-m-d', strtotime( $mariadb_matches[1] . ' +5 years' ) );
+		$current_date = gmdate( 'Y-m-d' );
 
-		$this->assertLessThan( $mariadb_eol, time(), "readme.html's Recommended MariaDB version is too old. Remember to update the WordPress.org Requirements page, too." );
+		$this->assertLessThan( $mariadb_eol, $current_date, "readme.html's Recommended MariaDB version is too old. Remember to update the WordPress.org Requirements page, too." );
 	}
 
 	/**