Incorrect time on a SRST router on a CCM 7.x Cluster

[arthurbecker]

I have a SRST (EST time zone) that is of a 7.x cluster (CST time zone) that has incorrect time by an hour. Is the time controlled one the CCM or the SRST and whhere would I make the change to correct the time?

[Jonathan Schulenberg]

Time is not controlled by UCM. The router should be synchronized to the same NTP source as the UCM cluster.

Cisco IOS Network Management Configuration  Guide, Release 12.4T - Configuring NTP

http://www.ciscosystems.com/en/US/docs/ios/netmgmt/configuration/guide/nm_basic_sys_manage_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1001170

Example:

ntp source Loopback0
ntp master
ntp update-calendar
ntp server 198.82.1.201 source Loopback0

Also be sure to set the appropriate time zone and DST rules if applicable to your location.

Example:

clock timezone CST -6
clock summer-time CDT recurring

Lastly, the telephony-service or call-manager-fallback also has a time zone command that should be declared for the phones:

Example:

telephony-service
time-zone 8