2. But admit that these essentially holy twenty-four hours, at the close of each week, may be marked without doubt, how can all Christians in different parts of the world keep them? How can men in different longitudes and latitudes so mark off the week as to have it end with this intrinsically holy portion of time? The difference in local time in different parts of the earth is a fact familiar to every school-boy. The circumference of the earth, for the convenience of calculation, is divided into three hundred and sixty degrees. As the sun appears to make a circuit round the earth every time the earth rotates on its axis, that is, every twenty-four hours, the apparent motion of the sun from east to west will be fifteen degrees each hour. Let it be noon of the seventh day at any given point in our land, and it will be sunset ninety degrees east, and sunrise ninety degrees west. At what point of the earth’s surface shall men claim the right to have the seventh or holy day begin with their sunset or their midnight, and demand that all others east and west shall measure their holy day from so many hours before or after their own midnight or sunset, as their portion may require? Or, again, in extreme northern and southern latitudes, where perpetual day and constant night alternate with the annual revolution of the earth, how shall the seventh day be marked? How shall this essentially holy day of twenty-four hours be known? As God, in his infinite wisdom, has seen fit to make our earth, and ordain the laws of its diurnal revolution on its axis, and its annual orbit round the sun, it is simply impossible for the inhabitants of the world to keep holy the same identical period of time. The interpretation of the law of the Sabbath at which we are looking is in conflict, therefore, with the laws of the solar system. 3. Our seventh-day friend, perhaps, retreats to his last refuge. There is no portion of absolute time essentially holy. That was never meant. Very well, then, what is meant? Why, that each one in his own longitude or latitude should observe the seventh day as it is measured by his own local time. We apprehend that, in some latitudes, the seventh day, measured by local time, running through some thousands of hours, would be a weariness to the strictest even of seventh-day Sabbatarians. But we will leave these extreme cases. They must keep holy the appointed proportion—one-seventh of their time. That must be the law of the Sabbath to them. But in the belt of the earth nearer the equator, local time, measured by the natural division of days, must be followed.