Question : The time on my Cisco Call Manager Express Router is wrong.

I have a Cisco 2811 Router with CME/CUE installed and configured on it.  The time on my Cisco IP phones are off by 10 minutes.  
If I do a "show clock" on the router it is 10 minutes fast.  If I set the clock on the router to the correct time will the IP phone automatically adjust to the new time, or is there something else I need to do?  Thanks

Answer : The time on my Cisco Call Manager Express Router is wrong.

Use exactly as I demonstrated. 192.5.41.40 is a public NTP server - tick.usno.navy.mil

the global command "ntp master" makes it a clock master.