Why Friday is important?

In the previous chapter, we read that Kashif signed the document of the contract, and the bad part of all this, There was one unusual condition in the contract which Kashif left to read. And that was

Condition: The worker is not allowed to open the package that has to be delivered, under any circumstance. Or else he will have to pay back half the salary.

Author: Now you understand what Rashid was talking about in chapter # Kashif framed.

Let's continue the story, shall we:

Then Furqan explained :

Furqan: Alhamdulillah (Thank God) Everything is done properly so Now As you have read, the job timings are from 7:30 pm to 11:30 pm.

Kashif: Right! From When do I join?

Furqan: Well! Today is Monday, it's your choice to join between tomorrow till Friday

Kashif: Well, I think Friday would be great as it is a blessed day for us.

Furqan: What do you mean, Blessed Day?