Displays the installation AIX Date

# man lslpp

 -h

    Displays the installation and update history information for the specified fileset. You cannot use this flag with the -J flag.

# lslpp -h bos.rte

  Fileset         Level     Action       Status       Date         Time

  ----------------------------------------------------------------------------

Path: /usr/lib/objrepos

  bos.rte

                  6.1.1.0   COMMIT       COMPLETE     05/26/11     15:26:31

                  6.1.6.0   COMMIT       COMPLETE     05/26/11     15:09:40

Path: /etc/objrepos

  bos.rte

                  6.1.1.0   COMMIT       COMPLETE     05/26/11     15:26:31

                  6.1.6.0   COMMIT       COMPLETE     05/26/11     15:09:40