'How Long' in the Bible

Then I heard a holy one speaking; and another holy one said unto that certain one who spake, How long shall be the vision concerning the continual burnt-offering , and the transgression that maketh desolate, to give both the sanctuary and the host to be trodden under foot?

And one said to the man clothed in linen, who was above the waters of the river, How long shall it be to the end of these wonders?