No, there is no time limit specified in the statutes for filling a vacancy on the common council or village board. In previous opinions we have suggested that vacancies on the governing body should be filled within a reasonable time. It makes sense to fill a vacancy as soon as practicable because an unfilled vacancy can, under certain circumstances, make it difficult for a governing body to conduct business. For example, an unfilled vacancy combined with absent members can make it difficult for the body to obtain a quorum. Similarly, an unfilled vacancy can make it difficult to take action on matters requiring the affirmative vote of two-thirds or one-half of the members of the body.