query.beginTimeReference =
  query.endTimeReference = query.TIME_RELATIVE_TODAY;
var oneDay = 1000000 * 60 * 60 * 24;
query.beginTime = -(oneDay * 6);
query.endTime = oneDay;
// �� "place:beginTime=-518400000000&beginTimeRef=1&
//           endTime=86400000000&beginTimeRef=1"