You may have heard the expression "Tea of Five."
To taste a teatea at this time is a widespread custom in English culture.
The habit, when it emerged, was exclusive to the bourgeois class, but from the nineteenth century it became popular. This custom existed in Portugal and was taken to England when D. João's daughter, Catarina, married the English king Charles II.
The five o'clock tea, however, fell on grace and became famous when Duchess Anna Maria Russell made her lunch with tea and snacks between lunch and dinner. Over time the formality was a bit sideways and the ritual became popular throughout Europe.
Source:http://www.mexidodeideias.com.br/index.php/curiosidades/como-surgiu-o-cha-das-cinco-na-inglaterra/