https://www.cnet.com/news/oscars-2019-stream-watch-online-free-abc-start-time-nominees-best-picture-black-panther-roma/

This year the Oscars take place at the Dolby Theatre in Hollywood on Sunday, Feb. 24. The whole event starts at 8 p.m. ET. 

Of course, if you're interested in the dresses, the pre-event interviews and all the red carpet watching, you'll want to start watching at around 90 minutes before at around 6:30 p.m. ET.