Web Map Service - setting 'time'

Hi everyone!! I'm trying to use the WMS and I realised that I need to look for a map outside the Mathworks Database. That's not a problem. The point is that within the Layer I'm interested in , the value for Layer.Details.Dimension.Name is '', while it should be 'time'. So my problem is that I can't set the period of time I'm interested in. Any help?? Thanks in advance!!