Hi Jordan,
Try configuring the Date attribute in the web map's pop-up property to remove the time.
1. Open the web map in the Map Viewer (either ArcGIS Online or Portal for ArcGIS).
2. Click configure pop-up for the desired layer in the web map.
3. In the Configure pop-up dialog, click Configure Attributes.
4. In the Configure Attributes window, select the date field and uncheck the Show time checkbox.
5. Click OK to save your changes.
This should remove the time stamp showing in the element, when you re-open the web map in Ops Dashboard.
Hope this helps,