When My Time Comes depicts Diane Rehm’s exploration of the issue of medical aid in dying (MAID). This is an option for terminally ill patients with six months or less to live who are able to make their own medical decisions and meet certain other legally prescribed criteria. Available to over 20% of the U.S. population, it is an option that John Rehm, Diane’s husband of 54 years, wanted before he died in 2014, but could not have.