What is the setting of The Razor's Edge by W. Somerset Maugham?

Only a few specific dates and times are given in the novel, but a basic timeline emerges. Maugham meets Elliott and Mrs. Bradley in Chicago in 1919. In Chicago, the reader is told that Larry has been home from the war for a year. The reader is also told that Elliott is in his late fifties. Maugham is middle-aged, and Larry is twenty years old while Isabel is nineteen.

After the action leaves Chicago, the reader needs to pay close attention to follow the timeline. Larry moves to Paris, where Isabel and her mother visit two years later. From Paris, Larry travels through France, Germany, Spain and India. Maugham then tells the reader about the stock market crash in October of 1929, roughly a year before he meets up with Isabel and Larry in Paris. From there, approximately three years pass before Isabel and her family move back to America, and Maugham and Larry meet for the last time.