to_date function with sysdate

Question

select TO_CHAR(to_date(sysdate, \'DD-MON-YYYY\'), \'DAY\') FROM DUAL; 

When I run this query the output was : SUNDAY. But we know today is Tuesday(

Answer 1

To_date is used to convert a strin to date. As sysdate is already a date, one must not add add to_date.