Try the Calendar app.
Calendar app help - Windows Help
I don't have atm a Win8 PC, so not sure how it works, but I guess it should.
Edit 1: LOL, I was unable to quote your post since "my message was auto marked as spam", w/o quote is fine.
Edit 2: Add a calendar
Swipe in from the right edge of the screen, and then tap Settings.
(If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Settings.)
Tap or click Accounts.
Tap or click Add an account, tap or click the type of account you want to add, and then follow the on-screen instructions.