Two o'clock
`` Good-night , Uncle Jack ! '' I said . He had seemed cold and stern just before . Now he was his quiet old self again , and he took my hand , nodded , and said : `` Two o'clock , Cob . Good-night ! '' I saw him go along the great workshop , enter the office and close the door , and then I started on my rounds . It was anything but a cheerful task , that keeping watch over the works during the night , and I liked the first watch from ten to two less than the second watch from two to six , for in the latter you had the day breaking about four o'clock , and then it was light until six .