Space.com by Amy Thompson 8/5/2019
Liftoff is set for 6:52 p.m. EDTSpaceX is now targeting Tuesday (Aug. 6) for its next launch of a Falcon 9 rocket.
The California-based private spaceflight company is aiming to launch the Israeli communications satellite Amos-17 no earlier than Tuesday from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida. Liftoff is scheduled for sometime between 6:52 p.m. EDT and 8:20 p.m. EDT(2252 to 0020 GMT), pending launch range approval.
SpaceX originally aimed for a launch on Saturday, Aug. 3, but had to reevaluate its plans after a routine preflight static fire test on Thursday (Aug 1) indicated a valve issue on the Falcon 9. SpaceX opted to postpone the launch to replace the suspect valve and perform a second static fire test on the booster.
More:
https://www.space.com/spacex-new-launch-date-amos-17-satellite.html