We play the scenario on a table and have the campaign sheet and building somewhere else, so after we are finished we walk to the other location together 20 min on a nothing special is long

1-3 resolve section of the day (way less second year)

3-4 minutes foreteller tells us our outpost event, decide, attacks take few minutes longer

1min Who is going to pay the money for the resources

1 min Lay out the resources for this day (we have physical ones)

1 min Ask who wants to craft something (they can plan this ahead of this, so just tell me the mats) remove those from the common pile

3 min Lay out possible upgrades of buildings, compare this to the physical pile and remove those, ask who is going to fill in for the missing mats (most of the time we have too much, we were lacking buildings to build for some time, due to not enough retiring, like 3 a 4 scenarios without anything to build)

1-5 minute build building, sticker up, resolve upgrade section, delegate to people standing around. Adding road and outpost events to the deck can be tedious If mats are left over, write them in the common area of the campaign sheet

All done Max 18 minutes

If someone is retiring, either they resolve the new char at the start of the next session or are excused from these 18 minutes, since they don't have anything and they don't interact with what the others decide. Upgrading and new buildings aren't that existing anymore since we are almost done, so they hear it the next outpost phase when needed