Open the IDE, with a blank sketch. Use the Sketch + Import Library... menu item to try to import the Time library. You will probably find that you can't.
This indicates that you did not put the library in the correct place, or correctly in the place that you put it.
Make note of the name of one of the libraries that you CAN import. Use your computer's search capability to find that name. Look at where that name occurs, as opposed to where you put the time library. Look at the structure of that library, as opposed to the time library structure that you created.
The difference should be obvious. If not, post what you find, and we'll help you get it straightened out.