Client Tools :: Date Result Different For Same Query In Toad And SQL Developer?

The date is different for same query in Toad and Sql Developer.

Below is the query

In SQL Developer

SELECT start_date, length(start_date) from my_table where p_id = 1;

09-MAY-5249 9

In Toad

SELECT start_date, length(start_date) from my_table where p_id = 1;

blank 9

Did some queries below for research.

SELECT start_date, DUMP(start_date, 1016)
from my_table
where p_id = 1;
09-MAY-5249Typ=12 Len=7: 30,37,d5,a,0,a2,d5
SELECT start_date, DUMP(start_date, 1016)
from my_table
where p_id = 2;
01-JAN-2013Typ=12 Len=7: 78,71,1,1,1,1,1

Why is same query returning two different results in two tools.