Unable to select incidents opened for last 15 days as there is no option on incident SLA table while doing reporting

[VIKAS MISHRA]

Hello Team, 

I have to schedule one report twice in a month which should have incidents opened for last 15 days (last 15 days option is not available) and first time job will run on 15th (incidents opened between 1st-15th), second time it will run on 30th of the month (incidents opened between 15th-30th). I am unable to put correct filter condition also not sure if script will be included for this requirement, please suggest.

Thanks You 

[Dan O Connor]

If you use Relative you can set the below

This will return incidents you are looking for.

Then when you go to schedule the report set to periodically

This should return what you are after