Those times will appear - but Walter's right, the show normally runs 15 minutes before the fireworks. (This one's a pain for me, since I watch CtM but have little to no interest in staying for the fireworks.) On nights when the fireworks are not shown at park closing, there is normally a second showing. That one often seems to be 35 minutes after the fireworks.
In January, you may only get a second showing once a week. (And that one's not guaranteed.)