If you choose to go with the "quick start" option you can be in and out within 5-10 minutes!! The welcome video is less than 3 minutes long but, if possible, I also recommend you watch the Morning Mindset Motivation lesson (which is just over 6 minutes long).
If you would like to go through and watch all of the course materials in one sitting, you're looking at about 2 hours of video lessons, plus I'd allow yourself at least 30 minutes of implementation time to work through the exercises and do some thinking around what I share.