“As announced in our 2019 Spring Seller Update, the listing duration for all new fixed price listings on eBay Canada is now Good ‘Til Cancelled. As of July 1, 2019, all Good ‘Til Cancelled listings on eBay renew automatically every month (previously every 30 days) unless your item sells before that timeframe.”
eBay Canada statement
This change impacts all sellers that use the eBay Canada (ebay.ca) marketplace, even if they are located outside of Canada.
Seller can learn more about listings fees and durations here: https://www.ebay.ca/pages/help/sell/formats.html.