How long does cooked chicken last?

Cooked chicken leftovers can be kept in the refrigerator for 3 to 4 days or frozen for 3 to 4 months.

Form	Where	Official window
leftovers	refrigerator	3 to 4 days
leftovers	frozen	3 to 4 months

The official discard rule

Throw away all perishable foods that have been left in room temperature for more than 2 hours (1 hour if the temperature is over 90° F, such as at an outdoor picnic during summer).

These are the official windows; when in doubt, follow the source linked below.

Grounded in: foodsafety.gov, fsis.usda.gov. Every window above appears verbatim in the linked sources.

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