Cron is a task scheduling daemon used in Linux Mint. As of this writing, Linux Mint 17.3 has it pre-installed. When the user needs to schedule a task, he must execute the following command:
sudo crontab -e
If you do this for the first time, you will be offered to select the default editor. If you made a wrong choice, here is how you can reset the editor app for crontab in Linux Mint.