Your calendar displays all events that you own in Salesforce on the My Events Calendar. Calendars that you create from a Salesforce object display data in date fields as calendar items. Follow my steps below to view a list of Tasks in your Calendar.
Step 1: Go to your Calendar tab and create a New Calendar.
Step 2: Create a custom calendar by selecting the object.
Step 3: Name your Calendar and specify your criteria
Step 4: View your Tasks and customize the color based on your likes.