Final answer:
Hawaii and some of the western islands of Alaska are in the Hawaii-Aleutian Time Zone (HAST/HADT), separate from the main area of Alaska that follows the Alaska Time Zone (AKST/AKDT).
Step-by-step explanation:
The time zone that includes Hawaii and some of the western islands of Alaska is the Hawaii-Aleutian Time Zone (HAST/HADT). This zone operates two hours behind the Alaska Time Zone (AKST/AKDT) during standard time. While the Aleutian Islands that follow the Hawaii-Aleutian Time Zone are part of Alaska, the Alaska Time Zone primarily covers the mainland portion of the state. The continental US observes eastern, central, mountain, and western time zones, and each time zone ensures that all areas within its boundaries share the same time.