I have just applied the Daylight Savings Time (DST) patch to a CallManager in our test lab. The CCM is running 4.1(3)sr3c. The server OS is running 2000.4.3aSR8. After applying the CCM DST patch, I set the date to March 11th and the time to 1:55AM. The system time goes from 1:59AM to 3:00AM, just like it is supposed to. The time changes on the phones after a minute also.
The issue is, we are doing time of day routing on the CallManager using Time Periods and Time Schedules. When I simulate the time change (as noted above), our time of day routing is off by an hour. This is the case when I have ?Specific Time Zone? checked and the appropriate time zone defined in the Partition Configuration page. If I change this to ?Originating Device?, our time of day routing works just fine.
I was wondering if anyone else has seen this behavior after applying this patch.