It depends on the paint. Read the instructions on the can, or look up the paint online. On the paint manufacturer's website, you will find a technical data sheet, which should contain drying time.
It depends on the size of the garlic and the humidity level (they'll dry faster in low humidity). At minimum, it'll take 10 to 14 days. Larger bulbs might take...
It varies depending on how thick the paint is and how humid the environment is, but it typically takes acrylic paint only 1-2 hours to dry. However, it may take...