Money GM to go silent for 8 minutes, 46 seconds on Juneteenth in support of Black community June 16, 2020 Jamie L. LaReau, Detroit Free Press Comments Off on GM to go silent for 8 minutes, 46 seconds on Juneteenth in support of Black community GM is asking its global workforce to hold 8 minutes and 46 seconds of silence on Juneteenth in support of the Black community.