how to insert dateTime in Oracle database using c#

hi all, i have facing problem while Executing Insert query with dataTime on Oracle database. This query is generated by string manuplation using C# at business layer . i fix the date time as in Query

"TO_DATE('" + ProdMonitor.TRANSACTIONDATE.Month+
"/" + ProdMonitor.TRANSACTIONDATE.Day +
"/" + ProdMonitor.TRANSACTIONDATE.Year+
" " + ProdMonitor.TRANSACTIONDATE.ToLongTimeString()+
"','mm/dd/yyyy HH:MI:SS PM'),"


The Whole Query Will be like

 

Insert Into JOBS (JOB_ID , EXECUTION_TIME,CREATION_TIME,SERIAL_NO,STATUS) values(JOB_ID_SEQ.NEXTVAL,TO_DATE('9/29/2008 11:00:00 PM','mm/dd/yyyy HH:MI:SS PM'),TO_DATE('9/26/2008 12:59:59 PM','mm/dd/yyyy HH:MI:SS PM'),'','1')

Chears