It is also difficult to determine how much time the events narrated in the book cover.
The first chapter tells about Job's life before his trial, and the last chapter reveals what happened after it until Job's death. The chapters in between deal with a relatively short period in Job's long life. How long was this period?
We have a few clues. Job referred to months when he spoke of his sufferings (7:3; 29:2). In view of Job's physical symptoms his ailments seem to have bothered him for several months at least. He may have suffered for years. However, Job said the same people who had respected him previously had come to reject and avoid him. He implied that his rejection was fairly recent.
The main part of the book contains dialogue that took place between a few individuals. There is no indication in the text that extended periods of time interrupted Job's sojourn at the city dump. It seems to have continued for a few days at the most, though the conversations may have stopped and then restarted. The writer may have telescoped the events to keep the narrative flowing smoothly. It appears that the scope of the main action at the city dump lasted no longer than a few days or possibly weeks.