Much of the activity in this scene seems like preparation for the days' business; one merchant is raising banners above his shop, another is supervising the unloading of grain sacks from transport boats on the Canal.  Another individual is getting dressed, and the establishments, many of which seem to be for eating and drinking, seem on the whole relatively deserted.  We might surmise that this scene is taking place in the morning hours, or during a rest period in the afternoon.