Prepositions can also indicate points of time or time duration. Based on it, in which option does the preposition convey the meaning of time as a...

Prepositions can also indicate points of time or time duration. Based on it, in which option does the preposition convey the meaning of time as a point?


In the old age, I will not stop studying.
I was really happy in my childhood.
In the afternoon, I always try to work out.
Your job interview will begin at 3.30 pm.
I will be back in the following week.