Dates and Calendars in MS Project

Dates and Calendars can be confusing within MS Project.  Recently, I have been asked some questions on them so I put together this presentation to explain how Dates and Calendars are stored and used.  I have uploaded a copy of my slides.  Feel free to review and use as you see fit.

In this presentation, I explain how Project (and other Office products) store dates and how date arithmetic is performed.  The types of Calendars and how they are used is also  covered.  I refer to MS Project 2010 & 2013 versions and also Project Server 2010 when they differ on Dates and Calendars.

Here is the link to the presentation:
https://drive.google.com/file/d/0B1X1zkrcPuSYVmJHRE5xbDd2RjQ/view?usp=sharing

Please comment if you want and respond with any questions, I will do my best to answer.

Thanks