Even though the Canadian Gov't says 180 days - HAL is still saying 90 days:
"Exceptions may apply for asymptomatic guests who have tested positive for COVID-19 within 90 days of their embarkation if they are at least 10 days past their COVID-19 infection, are fully recovered with no symptoms and produce documentation of recovery from COVID-19 infection."
From here, under "(Updated) I had COVID-19 and recovered but still test positive, will I be able to travel?"
I'd love to use our 140 day old positive tests - but I don't think HAL will accept them.