How many degrees of longitude separate las vegas from the international date line, which is at 180 degrees longitude?

The city of Las Vegas is located at coordinates 36º 10' 09'' N and 115º 08' 41'' W. Therefore, to determine the separation in degrees between the International Date Line and Las Vegas, there must be subtracted 115º 08' 41'' to 180º, which gives a result of 64º 51' 19'' degrees of longitudinal separation.

Las Vegas is a city in Clark County in the state of Nevada. The city is one of the largest commercial and tourist centers in the United States, especially known for its countless casinos and for its many wedding chapels. Every day, 150 people get married in Las Vegas. The city also has far more divorce courts than most other US cities.  

Just south of the city limits is the Las Vegas Strip, known for its many copy buildings, such as a smaller model of the Eiffel Tower, the Empire State Building, the Chrysler Building, a Pyramid and the Statue of Liberty  as well as many more. The hotel The Venetian is built on inspiration from the Italian city of Venice.