There is not a superscribed time frame for the patches to be uploaded to the Knowledge Base. Each vendor releases based on a schedule and each of these are tested in a lab by Ivanti for issues. Then these are uploaded to the Knowledge Base. If there is a Zero Day patch, these are typically released faster.
I hope this helps!
Let me just add that typically Microsoft patch Tuesday, Ivanti will publish the KB which includes these newly released patches by the default KB upload time of 11 PM the same day. I have seen where BCM customers have been spared the inclusion of patches that did not pass the "testing" phase performed by Ivanti and formally Shavlik. This is a rare occurrence but it does happen where patches "fail" the lab test are not released or included in the KB file.
I hope this better answers your question,