current_time( 'mysql' ) returns local site time: 2019-04-25 21:12:30
current_time( 'mysql', 1 ) returns GMT: 2019-04-26 04:12:30
current_time( 'timestamp' ) returns local site time: 2019-04-25 21:12:30current_time( 'timestamp', 1 ) returns GMT: 2019-04-26 04:12:30
TIME NOW : SYSTEM
