Good evening, I do not have any experience with 8000m altitude acclimatization, but I can tell you all about time tables. Generally, you read them left to right or top to bottom. For instance, my bus time table requires you to read right to left to determine which were the bus stop location is, and top to bottom to determine what time the bus will be there. Here is an example. Now not all time tables are like this. Sometimes they reverse the up/down left/right bit, and sometimes they do other tricky stuff. Here is an example of when they get tricky. As you can see, there is a lot of information here. Not only height in meters and feet, but also laid out by date and time. After you spend a little bit of time, however, you'll find that time tables are a piece of cake, and you'll be sending 8000m peaks with your eyes shut. Good luck!