Plan to spend around 1.5 to 2 hours at the Petit Palais to comfortably explore its permanent collection, admire the grand Beaux-Arts interiors, and take a break in the peaceful courtyard garden. If you enjoy art museums or want to visit a temporary exhibition as well, allow 2 to 3 hours. For a quicker visit focused on the building’s highlights and a few key galleries, about an hour can be enough.