1.We use Present simple to talk about future events which are part of a timetable, a regular schedule or smth like that.
e.g. The train leaves at three o'clock tomorrow.
2. We use the future perfect to show that the action has finished by a certain future time.
e.g. I'll have finished reading this book by 2 o'clock tomorrow.You can come for it at 2 o'clock.
3. We use the future progressive to show that the action will be in process at a certain time period in future.
e.g. I'll be waiting for you at 8.30 a.m tomorrow morning.
They will be working on the project from Monday till Friday.