When I add the NASA GIBS EPSG:3857 GetCapabilities endpoint to ArcGIS Online, it correctly parses it and I am able to add a layer. However, ArcGIS Online is not parsing the GC to support the 'time' Dimension. A sample Dimension element is seen here:
When I add a parameter via the interface, it tacks it on as a query parameter, and does not follow the ResourceURL found in the Capabilities document. A sample is seen here:
Note that this usage of 'time' is compliant with Annex C of the WMS 1.3.0 specification, specifically using the "min/max/resolution" nomenclature for possible.
So my idea/request is for ArcGIS to support custom Dimensions specified in a Capabilities document, especially 'time'.