What is the setting of The Noonday Demon: An Atlas of Depression by Andrew Solomon?

The book is set at the time during which Solomon writes it; the references he makes to people, places and timeframes are done from the reference point of the late 1990s to the beginning of the century, just before the book was published in 2000. Solomon uses multiple case examples in each section to illustrate his points and each example goes back to the time in which it took place. Solomon shares his own personal experiences as well, which primarily took place in New York during his bout with depression.