About the same time to carbonate, since it's the yeast that do the work. They are also handy for people, like me, who don't bottle much and for saving a flat batch.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk