In what time period is the novel, Five Minutes in Heaven, set?

The chronology of Five Minutes in Heaven stretches from the end of World War II to the Cold War (Ace's gang, the Commie Killers, regularly blow up cats called Hiroshima with cherry bombs), through the conventional fifties, with football and kissing games (Five Minutes in Heaven), through the Vietnam War and the sexual revolution of the sixties — musical mattresses, cruising, and threesomes — the self-awareness decade of the seventies, and into the uncertainty of the eighties.