timeExtent property
A span of time used to query features in a time-aware feature layer.
You can apply a temporal filter on any FeatureLayer that supports time filtering (FeatureLayer.supportsTimeFiltering). Set the TimeExtent.startTime and TimeExtent.endTime to query features across a span of time. A single point in time can be queried by setting them to the same time value.
By default, this value is null and no time criteria is applied by the query.