Delete two hours old files in Sun OS

In Sun OS mmin doesnt work to delete the older files..

To delete older files on SunOS use "newer" option

      
oracle@sev2(1125) db2 /opt/app/db2/oracle/admin/db2/udump
$ date
Tue May 17 18:33:22 EDT 2016
oracle@sev2(1126) db2 /opt/app/db2/oracle/admin/db2/udump
$ touch 05171633 /tmp/TIMESTAMP 
[05=month 17 = date 1633 = 16:33 pm ( 2 hours older than current time)]
oracle@sev2(1128) db2 /opt/app/db2/oracle/admin/db2/udump
$ nohup find . ! -newer /tmp/TIMESTAMP -exec rm {} \;