Where are all the people with a day-related event located in Pokemon Sun and Moon demo?

Solution 1:

There are possibly two other people that do something:

• the man outside the Tourist Centre mentions age 11 as a rite of passage, hinting that 11 days will lead to something maybe.
• the barista inside the Pokémon Centre says the owner will be back "in about a month".

source: http://www.eurogamer.net/articles/2016-10-17-pokemon-sun-and-moon-demo-guide-how-to-unlock-ash-greninja-in-the-full-game

For the rest your list seems to be complete.

Solution 2:

There are only 5 citizens with a day-related event, and they are listed above.

For the sake of curiosity, I'm meeting those people and here are the results:

• 1 day after download (October 19): The boy outside the Pokecenter gives you 10 Pretty Wings, useless item, but he also said that if you find the others something interesting will happen.

• 5 days after download (October 23): The "guy" who saved the girl is a Machamp. No item received.

• 12 days after download (October 30): The guy celebrating his Pikachu's birthday in the City Hall gives you a Balm Mushroom.

• 18 days after download (November 5): Only an in-game event.

• 24 days after download (November 11): The reward is a Comet Shard.

The dates listed in parentheses are the dates you'll need to log in on assuming you downloaded the demo when it released on October 18th.

Source here.