'Dawn' in the Bible

She asked us, "Please allow me to glean what's left of the grain behind the harvesters.' So she came out and has continued working from dawn until now, except for a short time in a shelter."

So she lay down at his feet until dawn approached, then got up while it was still difficult for anyone to be recognized. Then he told her, "It shouldn't be known that a woman has come to the threshing floor."