Convert a string of digit numbers to DATETIME

Hi All,

I have a column with the data like below:

"1347635686a 00n0679b1347635687c00n0679I: 32.IBJD.883305..SW 512 366-4757 01512-366-4776 015 post 4, warehouse, position 24 "

I wanna convert the sub strings "1347635686" and "1347635687" into DATETIME,  so did it like below:

REGEXP_REPLACE(@Details\Note Org),'[[:digit:]]{10}', to_char(

fn_adjusted_date(

converttousertz_bo(

to_number(

REGEXP_SUBSTR(Details\Note Org),'[[:digit:]]{10}',1,1)),'00n8807')),'MM/dd/yyyy HH24:mi:ss'))

However, the result I got is the same DATETIME for both sub strings.

09/14/2012 09:14:46a 00n0679b 09/14/2012 09:14:46c00n0679I: 32.IBJD.883305..SW 512 366-4757 01512-366-4776 015 post 4, warehouse, position 24 "

Is there any suggestion?

Help me please?