Caller ID timestamp is approximately 11 minutes slow

I was under the impression that the timestamp was sent along with the Caller ID info from the switch.  Is this not the case?

Thanks, but in my case, as previously stated, the timestamps are the same on 2 different autonomous caller id systems.  1 system consists of all handsets on the cordless phone system, while the second system is a standalone Caller ID display.  The time displayed for each received call is sent by your switch along with all Caller ID info for each call.

It is important that Cox get it right because most Cordless phone systems and Caller ID display systems derive the current time from the timestamps previously sent.  For example, our cordless phone system will show the current time on Daylight Savings Time after 2 AM this Sunday, Nov. 4th until we receive a phone call after 2 AM.  It will display 1 hour ahead all day Sunday until we get a phone call.  If we don't get a call Sunday, it will continue to display the time 1 hour ahead until we do.