Sometimes things don't go according to plan
but that’s why you watch the dough and not the clock. I usually like to give my starter 2-3 feeds before I work with it, but this passed weekend I rushed it and was only able to feed it once. This messed with my fermentation time table, but I was still able to produce a sourdough with great flavor and a wonderfully textured crumb.
Moral of the story, trust your eyes and the feel of the dough.
Source: Fresh Loaf