midnight
The sea is like a sheet of glass . Meanwhile , Fred and his friends are enjoying all the delight of daylight which is perpetual . Every thoughtful reader will at once perceive that where the sun only sets for a few minutes there can be no diminution of the light worth speaking of -- nothing approaching even to twilight . The night before the arrival of the yacht at this place the sun set a little after midnight , and in twenty minutes afterwards it rose again to pursue its brilliant course through the northern sky . It is scarcely possible for a Christian to look on such a scene without recalling those striking passages in God 's Word , which , in describing heaven , tell us that `` there shall be no night there , '' and speaks of a `` sea of glass like unto crystal , '' before the throne of God . Well may the heart of man in such a scene exclaim with the Psalmist , `` O Lord , how manifold are Thy works ! In wisdom hast Thou made them all : the earth is full of Thy riches . ''