Answer: The story begins at the start of the day and ends by that same night.
Explanation:
We can assume that Leon and Kenn find Teofilo during the morning because it is stated that they get back on time to see that Louise and Teresa had set the table for lunch.
There are several references to the sun that allow us to set the time frame in one single day. By the end, after the priest's visit, the sun was already gone, showing that the story ends by the end of the day.
