According to NASA, it will take  "about 28.5 hours for the spacecraft to autonomously dock to the space station at 11:30 p.m. EDT Saturday, March 15, while traveling 17,000 mph orbiting the Earth."Once the crew successfully makes their way to the ISS,

The U.S. space agency and SpaceX are on a mission to bring home astronauts Butch Wilmore and Suni Williams. They have been stuck on the International Space Station for nine months.

Reaching orbit from NASA’s Kennedy Space Center, the newest crew includes NASA’s Anne McClain and Nichole Ayers, both military pilots; and Japan’s Takuya Onishi and Russia’s Kirill Peskov, both former airline pilots. They will spend the next six months at the space station, considered the normal stint, after springing Wilmore and Williams free.