current_time( 'mysql' ) returns local site time: 2020-10-20 17:27:44
current_time( 'mysql', 1 ) returns GMT: 2020-10-20 15:27:44
current_time( 'timestamp' ) returns local site time: 2020-10-20 17:27:44current_time( 'timestamp', 1 ) returns GMT: 2020-10-20 15:27:44
