This is my current query

```
SELECT 
        TABLE1.OUT_NO,
        To_char(sysdate, 'MM-DD-YYYY HH24:MI:SS') as "Current_Time",
        To_char(TABLE2.time_stamp, 'MM-DD-YYYY HH24:MI:SS') as "Recorded_Time"
FROM TABLE1 TABLE1 LEFT OUTER JOIN TABLE2 TABLE2 ON TABLE1.OUT_NO = TABLE2.OUT_NO
WHERE TABLE1.OUT_NO > '12345'

```

I need to subtract `Current_time` - `Recorded_Time` and get result in Hours and Minutes.  

how can I achieve this?