current_time( 'mysql' ) returns local site time: 2022-05-17 20:05:03
current_time( 'mysql', 1 ) returns GMT: 2022-05-17 18:05:03
current_time( 'timestamp' ) returns local site time: 2022-05-17 20:05:03current_time( 'timestamp', 1 ) returns GMT: 2022-05-17 18:05:03
