Uruguay eats late, like Argentina, and then refuses the rest of the comparison. Montevideo is a rambla you walk with a mate gourd, candombe on the right night, and a chivito that is a construction project, not a steak punchline. The peso (UYU) is a currency you can actually plan around — cards in the city, cash for the beach shack — without a parallel-rate soap opera.
Colonia del Sacramento is a ferry from Buenos Aires and a UNESCO grid you do on foot. Punta del Este is a summer machine that goes quiet when the Argentines go home. Punta del Diablo and the eastern beaches are a bus, not a vibe you Uber from Pocitos.
Dinner at 7pm is still a tourist sitting in a half-empty room. Have a medialuna, walk the rambla at sunset, and sit down after 9:30. Buses, not trains, move the interior. This is a small country that rewards a slower week in one city-plus-beach pair, not a greatest-hits sprint.