Electronically filed documents can be filed until midnight. What are the filing hours for eFiling?You may submit your filings electronically 24 hours a day. Before eFiling in Riverside County, California, be sure to read our eFile guide to make sure that your legal court documents will be approved! Riverside County Superior Court efiler resource to navigate eFiling requirements, deadlines, and formatting parameters for successful eFiling. An eFiling guide to File on an Existing Case in the Riverside, California Superior Courts and electronically serve your documents. Information about filing court documents in Riverside County, California. Services: Court locations, Contact information. These instructions are to Initiate a New Case in the Riverside, California Superior Courts—meaning this case is brand new, and does not exist yet in any court. File Request Cards are available at each Justice Center.