The release said a province-wide moment of silence will be observed at 3 p.m. AT on Sunday.
The Nova Scotia Remembers Legacy Society, a volunteer group formed in the aftermath of the shootings, has also organized a memorial race and a private gathering for the families of the victims and special guests on Sunday.
The day will begin at 7 a.m. AT with runs in and around Truro and Colchester County. The society said spectators are welcome along the course route with physical distancing, but won't be allowed at the start or finish lines.
Proceeds from participants will go toward installing a permanent memorial for the victims.