https://phys.org/news/2018-11-nasa-insight-mars-milestones.html

If all goes well, MarCO may take a few seconds to receive and format the data before sending it back to Earth at the speed of light. The one-way time for a signal to reach Earth from Mars is eight minutes and seven seconds on Nov. 26. Times listed below are in Earth Receive Time, or the time JPL Mission Control may receive the signals relating to these activities.

More information:

                                    For the latest updates on InSight's status, visit: mars.nasa.gov/insight/timeline/landing/status/