one o'clock
The music from the battleship ceased , and for a moment all was still save for the lapping of the water against the ships ' sides and the splash of a fish as it leaped out of water . Suddenly and together , a shrill piping on all the ships broke the silence , followed by the hoarse cry , `` All the anchor watch to muster . '' On all men-of-war at eight o'clock , the anchor watch is mustered . It consists of sixteen men -- eight on duty from nine till one o'clock , the other eight from one till `` all hands '' at 5:30 . The first part always calls its relief at one o'clock . The mustering over , all flocked aft to hear the band again , but were disappointed , for the concert was over . However , the men had come aft for music and music they must have in some shape .