<P> Although the episode was fictionally set in Seattle, Washington, filming occurred in Los Angeles, California . The recurring characters of Adele Webber (Loretta Devine), Finn Dandrige (Chris O'Donnell), Dr. Ellis Grey (Kate Burton) and Olivia Harper (Sarah Utterback) were portrayed with guest star billing . The title of the episode refers to the song, "Time Has Come Today", by the soul music band, The Chambers Brothers . The episode received mixed to favorable reviews, with Heigl being particularly praised . The episode was viewed by 25.41 million Americans in the United States upon its original airing, ranked first in weekly viewership and garnered a 9.0 Nielsen rating in the 18--49 demographic . </P> <P> "Time Has Come Today" opens to a voice - over narration from Dr. Meredith Grey (Ellen Pompeo) about the rapid passing of time . Dr. Izzie Stevens (Katherine Heigl) has a mental collapse after the loss of her fiancé, Denny Duquette (Jeffrey Dean Morgan), as she refuses to deal with the repercussions of her decision to leave the internship program, by lying on the bathroom floor . Dr. Cristina Yang (Sandra Oh), Dr. Alex Karev (Justin Chambers) and Dr. George O'Malley (T.R. Knight) support Stevens during her grieving, becoming influential in her recovering . Dr. Addison Montgomery - Shepherd (Kate Walsh) finds Grey's underwear in Dr. Derek Shepherd's (Patrick Dempsey) shirt, and finds difficulty in conceiving a future for their already troubled marriage . Grey unwillingly finds herself in a love triangle involving Shepherd and Finn Dandridge (Chris O'Donnell). Dr. Richard Webber's (James Pickens, Jr .) wife, Adele Webber (Loretta Devine), gives him an ultimatum after spending the night in his office, giving him a choice between his career as a surgeon and his marriage to her . Dr. Preston Burke (Isaiah Washington) faces the aftermath of being shot, which leads to him experiencing hand tremors that could lead to his giving up cardiothoracic surgery . </P> <P> An infant with a severe heart condition is admitted in neonatology, and is revealed to have been abandoned in a schoolyard by his biological mother, whose identity lies between four pre-adolescents . Montgomery quickly becomes emotionally involved in the case, reliving the feelings she went through after aborting the child conceived with Dr. Mark Sloan (Eric Dane). Shepherd and O'Malley get quarantined after an outburst at the hospital, due to a patient suspected of having the plague . Their incapacity to leave the hospital leads to numerous confessions between the two, including Shepherd's reveal of his desire to divorce his wife and reconcile with Grey . Dr. Callie Torres (Sara Ramirez) takes a leave of absence from the hospital, in a continuous attempt to bond with the grieving interns, who do not approve of her relationship with O'Malley . When a patient, Giselle Toussant (Elizabeth Goldstein), is admitted to the hospital, and ultimately dies in Dr. Miranda Bailey (Chandra Wilson)'s care, she begins to question her abilities as a surgeon, due to the guilt over the death of both Toussant and Duquette, whom she also performed surgery on . At the conclusion of the episode, Stevens overcomes her grief and gets off the floor, which metaphorically expresses her desire to move on . </P> <P> The episode was written by show runner and executive producer Shonda Rhimes, while filmmaker Daniel Minahan directed it . Sara Ramirez began receiving star billing in the season premiere, after numerous appearances during the last episodes of the second season . Although the episode was fictionally set in Seattle, Washington, it was filmed in Los Angeles, California . Fisher Plaza, which is the headquarters building for Fisher Communications and Fisher's ABC affiliated Komo radio and television stations for Seattle, is used for some exterior shots of Seattle Grace Mercy West Hospital, such as air ambulances landing on the Komo Television newscopter's helipad . This puts Seattle Grace conveniently close to the Space Needle, which is directly across the street from Fisher Plaza, the Seattle Monorail, and other local landmarks . However, the hospital used for most other exterior and many interior shots is not in Seattle, are shot at the VA Sepulveda Ambulatory Care Center in North Hills, California . Most scenes are primarily filmed in Los Feliz, Los Angeles, at the Prospect Studios, and the set occupies two stages, including the hospital pieces, but some outside scenes are shot at the Warren G. Magnuson Park in Seattle . </P>

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