yes - you could create a connection from your shading node to a attribute you want to appear in hypershade. and then select the shading node, and say graph->input and output connections.

if you must have the darn time in your shading network, just open up the connection editor, hypershade and outliner at the same time. select you shader and in connection editor reload right or left (the -> to) part. now go to outliner, disable "show dag objects only" - click on time1 and back to connectio editor, and load the from side. now you can connect outime to the something in the shader. now select shader again - and graph input and output connections. you not only have time1 in hypergrapgh, you also got between shader and time1 a "timeToUnitConversion1" - real interesting. i would never have known how to create such a node - but it is in hypershade to play around now

hope that helps