Pacific Time (PT) is a time zone that is 8 hours behind Coordinated Universal Time (UTC-8). It is primarily used in the western part of the United States and Canada, including major cities like Los Angeles and San Francisco. During Daylight Saving Time, which typically runs from the second Sunday in March to the first Sunday in November, Pacific Time shifts to Pacific Daylight Time (PDT), which is UTC-7. Pacific Time is important for scheduling events, business operations, and broadcasting across different regions. It helps synchronize activities among states and provinces that observe this time zone, ensuring that people can coordinate effectively.