I know Cisco has released patches for new DST for Unity and CCM.
The issue is my CCM and Unity are getting their time from NTP.
According to my understanding, NTP network time servers, they are not affected by DST since by definition NTP serves time in the Coordinated Universal Time (UTC) format. DST time offsets are handled by the client operating system.
Hence we will have to review the underlying client operating system settings for the CCM, Unity & Voice gateway.
Is that correct?