Many to zero relationship with Entity Framework

Question

I have difficulty understand how I can make a "connecting" table between TimeLogEntity and TimeLogPeriodEntity (see classes below).

public class TimeLogEntity
{
   public int Id {get; set;}
   public DateTime Date { get; set; }
   ...
   public TimeLogPeriodEntity TimeLogPeriod { get; set; }
}

public class TimeLogPeriodEntity
{
   public int Id {get; set;}
   public string Name {get; set; }
   public DateTime From {get; set; }
   public DateTime To {get; set; }
   ...
   public ICollection<TimeLogEntity> TimeLogs{ get; set; }
}

I want EF to generate 3 tables: TimeLogs, TimeLogPeriods and TimeLogPeriodCrossTimeLogs,

I want a TimeLogPeriod to have multiple TimeLogs. But a TimeLog don't have to have a TimeLogPeriod.