According to the United Nations World Tourism Organization (UNWTO), a tourist is officially defined as a "visitor" who stays at least one night (24 hours) but less than one consecutive year in a place outside their usual environment for leisure, business, or other personal purposes. To qualify as a tourist under this long definition, the individual must not be remunerated from within the place visited (meaning they aren't there to work for a local employer). The definition further distinguishes between domestic tourists (residents traveling within their own country) and international tourists (travelers crossing borders). Those who stay for less than 24 hours are classified as "excursionists" or "day trippers." This definition is crucial for global economic statistics, as it helps governments measure the impact of "tourism expenditure" on local and national balances of payments.