Pacific Time (PST/PDT) · Las Vegas · UTC−8 / UTC−7
Las Vegas casinos famously have no clocks and no windows — designed to make you lose track of time. Yet the city itself runs strictly on Pacific Time. Las Vegas hosts 42 million visitors annually and generates $15B+ in gaming revenue. Major events (CES, boxing, F1 Las Vegas GP) are timed to PT.
Nevada has no state income tax — funded entirely by gaming and tourism revenue. This has attracted a massive tech migration: Tesla's Gigafactory is in Sparks (near Reno), and Switch, the world's largest data center campus, operates in Las Vegas. Companies relocating from California save on taxes while staying on the same timezone.
West Wendover — a tiny casino town on the Utah border — is the one exception: it uses Mountain Time to stay aligned with nearby Salt Lake City customers who drive across the border to gamble.