The Portal data being mostly driven by time, you will typically have to specify the Start and End period during which the item you are entering will be visible to the Portal visitors.

 The Display period proposes the following value by default:

• Start: the date and time of the creation of the item
• End: "plus infinity" - that is , with no limit in the future

These values can of course be modified, as explained in the next Set the Date And Time section.