1. A day that is exceptionally good, outstanding, or of high quality; a day marked by positive events, achievements, or pleasant experiences
Today was an excellent day; I got promoted and had lunch with an old friend.
Hoje foi um dia excelente; recebi uma promoção e almocei com um amigo antigo.
2. A day characterized by favorable weather, good mood, or successful outcomes
It was an excellent day for a picnic with perfect weather.
Foi um dia excelente para um piquenique com o tempo perfeito.