problem with project-query for hourly display of shift

declare @sDate datetime,
        @eDate datetime;

select  @sDate = '11/4/2014 08:00:00' ,
        @eDate = '11/4/2014 20:00:00';
--select @sDate StartDate,@eDate EndDate
;with cte as
   (
      select @sDate StartDate
      ,datepart(hour, @sDate)  StartTime
      , datepart(hour, dateadd(Hour, 1, @sDate)) as EndTime
      ,convert(varchar(8),datepart(hour, @sDate))  
      + ' - '
      + convert(varchar(8),datepart(hour, dateadd(Hour, 1, @sDate))) as Hours
                
  union all
 
      select  dateadd(Hour, 1, StartDate)
      ,datepart(hour, dateadd(Hour, 1, StartDate))  StartTime
      , datepart(hour, dateadd(Hour, 2, StartDate)) as EndTime
       ,convert(varchar(8),datepart(hour, dateadd(Hour, 1, StartDate)))
      + ' - '
      + convert(varchar(8),datepart(hour, dateadd(Hour, 2, StartDate))) as Hours
              
  FROM  cte
  WHERE dateadd(Hour, 1, StartDate)<=  @eDate
    )
select * from cte
option (maxrecursion 0)