When videos are published: Everyday 11 AM-12 PM Central Time.
When streams start: Monday 7-8 PM Central Time.

These same numbers apply for Daylight Saving Time/Time changes.

If something happens a video may be uploaded before or after the stated time.
If not at all something catastrophic is preventing me from uploading like a power outage or a internet outage.
And yes we have Unlimited Phone Data but it is slow as hell where I live. And hotspots are limited on data.
Same applies for live streams.