current_time( 'mysql' ) returns local site time: 2022-05-17 12:56:15
current_time( 'mysql', 1 ) returns GMT: 2022-05-17 16:56:15
current_time( 'timestamp' ) returns local site time: 2022-05-17 12:56:15current_time( 'timestamp', 1 ) returns GMT: 2022-05-17 16:56:15
