Preposição de tempo

Question 1

IN

Answer 1

Usado em períodos e fases do dia.
com exceção do NIGHT, pois e um período noturno.
ex:
I work in the morning
I work in the afternoon
i work in the evening
I work at night

Question 2

ON

Answer 2

Usado para dias de semana
I work on monday
I work on sundays
I work on weekends
I work on weekdays
Iwork on weeknights

Question 3

AT

Answer 3

Usado para horarios.
I work at ten o´clock
I work at 10:00
I work at 10 PM
I work at 10 AM
I work at noon
I work at midnight