Nevada Day is a legal holiday in the state of Nevada in the United States. It commemorates the state's October 31, 1864 admission to the Union. The first known observance of Nevada Day (originally known as Admission Day) was by the Pacific Coast Pioneer society during the 1870s. The Nevada Legislature established it as a state holiday in 1933. It was originally observed on October 31. To give it a three-day weekend, in 2000 Nevada Day was moved to the last Friday in October.