-bash-3.2$ sqlplus / as sysdba
SQL*Plus: Release 18.104.22.168.0 Production on Wed Aug 29 12:18:54 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Oracle Database 11g Enterprise Edition Release 22.214.171.124.0 – 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> recover managed standby database cancel;
Media recovery complete.
SQL> alter database open read only;
SQL> alter database recover managed standby database disconnect
Now your Database is ready with read time apply with read only mode.!!!!!!!