What is the maximum time chicken can be thawed before spoiling?

The correct way to safely thaw frozen poultry requires planning ahead for the time required to thaw it in the refrigerator. Whole chickens may take up to 2 days to fully thaw in this way, while boneless breasts should thaw overnight. Once the chicken thaws, it should be kept in the refrigerator no more than a day before cooking. This is the best way to avoid spoilage.