System maintenance taking 5h41m?

[Gary92]

Just received notification that my internet service is down for "system maintenance" that will take 5 hours and 41 minutes. This is absurd. How can system maintenance take that long?  Can it not be broken into several shorter interval?  I have several smart home systems that rely on internet connectivity.  At least customer should be notified if such long "system maintenance" is scheduled.

Another reason that makes Xfinity/Comcast NOT my choice company but has to use because there is little to no alternative in my rural area.

[CCAndrew]

That’s just an estimate, it could be longer, it could be shorter. But the maintenance team doesn’t know exactly what they will run into until they get out.

[Gary92]

Again today, at 3:25 AM a scheduled outage until 6:00 AM. This is annoying.  Why can the outage be scheduled and announced ahead so that customer can plan accordingly? Another indication that Xfinity/Comcast takes its customer for granted and does not care if it is inconvenient its customer.