Jane Gallagher had wanted to know what time it was, but for some reason Holden Caulfield hadn't wanted Stradlater to tell her. When Stradlater refused to tell Holden Caulfield whether or not he had told Jane Gallagher what time it was, Holden Caulfield became enraged and attacked him in a fit or horological savagery, possibly because he was mentally ill and hated anyone byt him knowing what time it was.