Using the defaultStartDate and defaultEndDate keys in the searchPanel object, you can set default values for date search fields used by queries. To specify a default date, set the value of either the defaultStartDate or defaultEndDate keys to a date in the format MM/DD/YYYY.
Note:
For queries with only a single date search field, use the defaultStartDate key to set the default value.
For example, to set a default date range of January 9th, 1990 to December 31st, 2016 you would configure the keys as follows:
“defaultStartDate”: “01/09/1990”,
“defaultEndDate”: “12/31/2016”