Ameen,
I suggest you manually set the clock on the WAE to match the CM time via the CLI. Then point the WAE to the CM as its NTP server.
Example:
On CM CLI execute the command show clock
CM#sh clock
Local time: Mon Sep 5 20:28:58 EDT 2011
On the WAE CLI manually set the clock (remove any ntp servers defined first).
pdi-7341-19#clock set 20:29:00 5 September 2011
Then configure the WAE to point to the CM as its NTP server.
pdi-7341-19(config)#ntp server
Regards,
Mike Korenbaum
Cisco Data Center PDI Help Desk
http://www.cisco.com/go/pdihelpdesk