TIME EXPRESSIONS USED IN THE FUTURE

Use 'next' to speak about the next week, month, or year.

We are going to visit our friends in Chicago next week.
I'll have some time off next month. 

Use 'tomorrow' for the next day.

He'll be at the meeting tomorrow.

Use 'in X weeks, days, years' time with the future continuous to express what you will be doing at a specific of time in the future.

We will be swimming in a crystal blue sea in two weeks time.

Use 'by (date)' form with the future perfect to express what you will have done up to that point in time.

I will have finished the report by April 15.

Use 'by the time + time clause ' with the future perfect to express what will have happened up to a specific action in the future.

She will have bought a new home by the time he arrives.