After 30 days I wouldn't wait for it to move. I have found that anemones ( esp. BTAs ) can be dumb, and won't always move to the light. A while ago I was selling off a bunch of rock, when I pulled one piece out I was shocked to find two bleached RBTA clones. There was nothing blocking their path to get to a better spot to get more light.
So I would suggest moving the rock so that it is in the light. And try to find out why it was staying there, perhaps there was too much flow?
Of course it may be somewhat bleached now, so you may have to move it lower in the tank, or adjust your lights.