If you have a hosting where you can't set a cron (most of the shared hosting I've used has crons though) you can use a free service like https://www.setcronjob.

If you have a hosting where you can't set a cron (most of the shared hosting I've used has crons though) you can use a free service like https://www.setcronjob.com https://www.setcronjob.com (not affiliated).