Hopefully Hikvision allows for commands to be sent over ip like the Dahua cameras do. If they do, then it is a pretty simple task of setting up some automated tasks in BI. The easiest thing to do is probably refer to the Dahua day/night switch utility thread as it contains a pretty good walk through on how to set it up inside of BI (rather than using the Dahua SunriseSunset app).
Dahua day/night switch utility - DahuaSunriseSunset
EDIT - actually you might not even need the ip commands. Simply use the actual PTZ Preset functionality of the system.