Assuming zohotime is required, the following result was found.
info v_UnixSeconds.toLong().toTime(); // yields 15-Apr-2020 17:00:00 Chained v_XeroTime="/Date(1586995200000+0000)/"; v_ZohoTime = v_XeroTime.subString(v_XeroTime.indexOf("(")+1, v_XeroTime.indexOf("+")).toLong().toTime(); // yields 15-Apr-2020 17:00:00...