The closing date is 11July. Is this day included?
The question in the book is :
True or false

You must apply before the 12 July

They say :
The closing date is 11July .So it's true, isn't it!

Thank you

Question

The closing date is 11July. Is this day included?
The question in the book is :
True or false

You must apply before the 12 July

They say :
The closing date is 11July .So it's true, isn't it!

Thank you

Answer

fyi- neither of these sentences would be used in American English.

You must apply by July 11.

A "closing date" typically relates to the signing of a (complicated) contract. We wouldn't use it to indicate the last day you could apply for something.

Answer

yes the 11th, but what hour of the 11th?

Answer

Yes, if the closing date is 11th July then applications received on 11th July are accepted, but any received on the 12th are too late. So applications must be received before 12th July is true.