Final answer:
The time and location of the next National Conference is not specified in the provided information. More specific information about the context is needed to determine the details of the conference.
Step-by-step explanation:
The next National Conference is not specified in the provided information. However, the term 'National Conference' is often used in different contexts and can refer to various types of conferences, such as political parties' national conventions or conferences organized by professional organizations. To determine the time and location of the next National Conference, it is important to have more specific information about the context or organization referring to the conference.