From the PTC FlexPLM header, you can use the Show changes since list to specify the date you want to reference when displaying changes made to products and certain product options.

The Show changes since list contains a list of reference days in reverse chronological order, with the most recent reference day first.

Out-of-the-box, the following reference days are available for selection from the list:

In addition, you can select Select Date to select a specific date from a pop-up window.

Whether you select a reference day or a specific date from the list, the system displays the reference date to the right of the Show changes since list. The system also displays the time with the reference date; the time is always 12:01 AM, and is specific to your location.