I want to create a custom timer job with a SPYearlySchedule. The job deploys successfully, but when I view its settings in the central admin, it is shown to have an hourly schedule. Furthermore, there seems to be no way to manually configure the job as a yearly job - SharePoint only lists radio boxes ranging from "Minutes" to "Monthly" and that's it.

What could be the cause of this? Here's how I'm creating the schedule:

private void CreateJob(SPWebApplication webApp)
{
    MyTimerJob job = new MyTimerJob(MyTimerJob.TimerJobName, webApp);
    SPYearlySchedule schedule = new SPYearlySchedule();
    schedule.BeginMonth = 10;            
    schedule.BeginDay = 10;            
    schedule.BeginHour = 1;            
    schedule.BeginMinute = 0;            
    schedule.BeginSecond = 0;
    schedule.EndMonth = 10;
    schedule.EndDay = 15;
    schedule.EndHour = 3;
    schedule.EndMinute = 0;
    schedule.EndSecond = 0;
    job.Schedule = schedule;
    job.Update();
}

I can create other schedules (e.g. weekly or daily) without any problems.

I want to create a custom timer job with a SPYearlySchedule. The job deploys successfully, but when I view its settings in the central admin, it is shown to have an hourly schedule:

Furthermore, as you can see, there seems to be no way to manually configure the job as a yearly job - SharePoint only lists radio boxes ranging from "Minutes" to "Monthly" and that's it.

What could be the cause of this? Here's how I'm creating the schedule:

private void CreateJob(SPWebApplication webApp)
{
    MyTimerJob job = new MyTimerJob(MyTimerJob.TimerJobName, webApp);
    SPYearlySchedule schedule = new SPYearlySchedule();
    schedule.BeginMonth = 10;            
    schedule.BeginDay = 10;            
    schedule.BeginHour = 1;            
    schedule.BeginMinute = 0;            
    schedule.BeginSecond = 0;
    schedule.EndMonth = 10;
    schedule.EndDay = 15;
    schedule.EndHour = 3;
    schedule.EndMinute = 0;
    schedule.EndSecond = 0;
    job.Schedule = schedule;
    job.Update();
}

I can create other schedules (e.g. weekly or daily) without any problems.