Date and time field question

Hello,

I am having problem creating a time and date format,

1. v_timedate := to_char(sysdate,'DD-MON-YYYY HH24:MI:SS');

I will encounter this error message :

"date format picture ends before converting entire input string"

When I change to

2) v_timedate := to_char(sysdate,'DD-MON-YYYY');

It will work fine BUT it will display :

13-APR-00 What happen to the '20' ?

Thanks for any help ! Received on Thu Apr 13 2000 - 00:00:00 CDT