I've got an issue with my CIPC phones connected to our UC500.
They are all displaying time 6 hours ahead of the current time. All of my devices, UC520, CE520 and the AP521 are all configured for the correct time, and my IP Phones all have the correct time. I have confirmed the time zone setting in Windows.
My time zone is GMT-7
I tried it on a system I have with AP521s (LWAPP controlled by a WLC526) and a UC520 called SBCS Mobility.
I got my wireless phones and desk phones to inherit their time from the respective devices, and I synced UC520 to NTP (in CCA 2.0 Device Property Drawer), and then synched the WLC526 to the UC520.
However, when I launch CIPC, it looks like it uses the time from my PC. Do you also see your CIPC is the time of the PC its running on as well?