at that time
I was a student at that time.
Mas ela saiu com alguém nessa época.
But she went out with someone around that time.
— Oldboy (2003)
Eu nessa época estava no Canadá.
At that time I was in Canada.
Ninguém vivia na ilha nessa época.
Nobody lived on the island at that time.
Vai estar fazendo frio lá nessa época.
It will be cold there at that time.