Final answer:
Yukon and the majority of British Columbia are in the Pacific Time Zone, which is 3 hours behind Eastern Time Zone.
Step-by-step explanation:
The time zone that Yukon and the majority of British Columbia are in is the Pacific Time Zone (PT). The Pacific Time Zone is 3 hours behind Eastern Time Zone (ET). This means that when it is 12:00 PM (noon) in ET, it is 9:00 AM in PT.
Canada and the United States have multiple time zones, and the Pacific Time Zone is observed in the western parts of these countries, including Yukon and most of British Columbia.
Other regions in the Pacific Time Zone include states like California, Oregon, and Washington in the United States. It is important to note that the time zones may change during daylight saving time, which is when the clocks are adjusted forward by one hour in the spring and back one hour in the fall.