ISS Commercial Crew extended test flight

Date: May 27
Time: 1632 EDT (20:32 UTC)
Pad: Kennedy Space Center LC-39A
Booster: Falcon 9 B1058.1
Vehicle: Crew Dragon
Booster Recovery: yes
Duration: about 110 days, extended from the original plan of a few days.

About 1 month after DM-2 returns from ISS SpaceX will launch USCV-1 (US Crew Vehicle #1), the first fully operational Commercial Crew mission.

They will continue flying USCV missions until Boeing's troubled Starliner gets its act together, which may be a while. There are only 2 more flightworthy Starliners, so another miscue would put Boeing in a real hurt.

NASA Commercial Crew blog post