This is a fascinating and unnerving dream narrative! It sounds like you're dealing with some potent symbolism. Perhaps exploring your family history might offer some clues about the woman. Sometimes, figures from our past, even distant relatives like a great-Granny, can manifest in our subconscious. Try journaling about your feelings when you see the woman at each "clock" position. That could unlock some insights into what you need to do before she reaches 12. Good luck on your journey!