This Condition located on the Personal category tab in Search Builder searches by date and allows you to look find individuals whose Deceased Date is Greater Than or Less Than a specified date or even an exact date. Click in the Value field to select the date from the calendar.
If you want to use a range of dates you will add this Condition to your search two times. The first one (for the start date) will use Greater Than, and the next one (for the end date) will use Less Than. If you want to include the start or end dates use the comparisons Equal/Greater Then and Equal/Less Than.
Most searches by default will not include those who are deceased, unless you add the Condition ‘Include Deceased’ (on the Miscellaneous category Tab) to your search. However, if you are using the Condition Deceased Date they will be included without your needing to add Include Deceased.