The launch period for NASA’s Mars 2020 rover opens exactly one year from today, July 17, 2020, and extends through Aug. 5, 2020. The mission will launch from Cape Canaveral Air Force Station in Florida and land at Mars’ Jezero Crater on Feb. 18, 2021.
Source:
https://phys.org/news/2019-07-t-minus-year-mars-rover.html