Yes, this is very Excel centered. But, so much of this relates to MS Access.
Over the last few weeks, there have been many questions about the basics of Dates and Time.
It would seem that many beginners have yet to learn that the Date is an illusion (at happy hour doubly so). The Date and Time are little more than a number.
The concept of taking Now() + 7 to transport to next week doesn't require a degree in quantum mechanics and a CERN particle accelerator.
This is easy to read, well laid out, and offers a little something for almost anyone.