Different Hours on IP Phones??

[newcom_mis]

Why is differents hours on my ip phones, i have 7911,7961 and 7970 models, im from nicaragua and i have time UTC -6, i configure on router

clock timezone managua -6

and on telephony-service

time-zone 8 but the clock display on the ip phone is different, one have one hour and other another hour, and dont display the correct hour of the country. Can you help me about it

[ivan_lysogor]

What IOS version do you have? This is probably bug - I have same on IOS 12.4 with phones x1 and Moscow timezone.

Works fine on 12.4T

[newcom_mis]

i have Version 12.4(1r) and a router cisco 2811

[paolo bevilacqua]

Hola, first of all you need to sync the router via NTP to a server, eg 4.2.2.1 (actual IP that works). Check the router has correct time with "show clock"

Then what is the phone with the wrong time? You may need to update to either latest 12.4(16) or 12.4(11)XJ3 that would give the best of CCME.