six o'clock
The cook was exempted from all duty in working the little steamer ; but each of the other seamen was required to keep a half-watch of two hours during the first night on board . Clinch was on watch at four in the morning . He called the engineer at this hour , and Felipe proceeded at once to get up steam . It was still dark , for the sun rises and sets at six o'clock on the equator . As soon as there was a movement on board , all hands turned out forward . There were no decks to wash down ; and , if there had been , the water was hardly fit , in the judgment of the mate , for this purpose , for it was murky , and looked as though it was muddy ; but it was not so bad as it appeared , for the dark color was caused by vegetable matter from the jungles and forest , and not from the mud , which remained at the bottom of the stream . `` The top uv the marnin ' to ye 's ! ''