You found clue 6

"d"

The next 2 clues are are really only 1.

It is a minute within the hour.

If you find it, and you've found all previous clues, you have the code.

If you still don't have it the last clue below will reveal it.

The minute of the hour I'm looking for is found by solving the "quiz for kids", #2, then add 3 to your answer.

Last Clue, reveals code (if you need it):

Although it may move from time to time, it is really in the same spot....   the end.