A transit visa for Dubai is a short-term visa that allows travelers to pass through the United Arab Emirates (UAE) while en route to another destination. It is typically valid for 48 to 96 hours (2 to 4 days), depending on the type. This visa is designed for travelers who have a layover in Dubai and need to leave the airport for a brief period before continuing their journey. The visa is valid for either 48 hours or 96 hours. Extensions are generally not allowed.