In Schedule jobs when i select 6 months or one year so the schedule job should run based on the day

[Hanook]

for example, in schedule job, we have daily, weakly, and monthly choices so if we select any one of these the scheduled job will run accordingly like that,

if I create a half-yearly choice field it should calculate six months from the day of selection and it should run every six months 

similarly, if I create a yearly choice field it should calculate 12 months from the day of selection and it should run every year