What is the date of the official Mission Space Opening?

[simba2]

Which day is the official opening? I know it is sometime during the week of Oct. 5.

 

[Tank]

Epcot is closing at 3pm on 10/9 to hold a special press event for the official opening.

 

[crystalb]

The official opening was mid August I thought? Wasn't it the 15th?