Wrong time on cisco ip phones

[j.smith@sepidarsystem.com]

Hi

We have CUCM 14 and the time of the server and ntp status is ok, but the time on the ip phones is not ok and it's one hour a head.

How can I solve the problem?

[Jonathan Schulenberg]

Is the correct time zone set on the Date/Time Group assigned to the phone via Device Pool?

Is an external NTP reference defined on that same Date/Time Group - and if yes, does it also have accurate time?

Are the daylight savings time rules installed up to date for your region?

[Mohammadreza Hadi]

you must install updated dst COP file for your region, on CUCM..
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