In, on at Preposições De Tempo

Question 1

Períodos diurnos

Answer 1

In:
In the morning
In the afternoon
In the evening

Question 2

Se referir a semana

Answer 2

On
On Monday
On Saturday
On weekdays
On weekends

Question 3

Para tudo referente a tempo/horário

Answer 3

At:
At ten o’clock
At 10:00
At noon
At midnight