No, it doesn't. It merely said that even Christ--at that time--did not know the date and time.
Scripture does teach us--through the parable of the 10 virgins as an example--that we are to be alert for His coming, watch for Him, and be prepared.
Being alert, watching, being prepared - do NOT mean trying to calculate the year.
If the Bible tells us that no one but God the Father knows when then it is folly for a man to try to know when.