The original speaker, recording date, and first upload are not publicly documented. The clip is known as a Portuguese WhatsApp-style voice message built around the line “Segunda-feira é difícil, mas hoje é terça,” meaning Monday is difficult, but today is Tuesday. It spread through reposts, chat groups, reaction videos, and short-form edits rather than through a credited film or television source. The joke remains useful because weekday fatigue and calendar confusion are familiar experiences, while the quick correction gives the recording a clear comedic finish.