Onah Beinonit
Onah Beinonit is one of the common Onot Perishah when there is no established Veset Kavua A common baseline is the thirtieth day from the start of the Re'iyah, while practices can differ regarding the exact Onah observed
For Onah Beinonit, day 30 includes the source day as day 1: add 29 days Day 31 adds 30 days and is labeled separately as day 31, Chavat Daat Both are enabled in the product profile and can be selected independently in custom settings An overlap preserves every reason
In this profile, Kreti uFleti adds the other half of the same Hebrew day, only for enabled day 30 or 31 It adds no new date and does not apply to monthly or interval concerns Chavat Daat refers to the work by Rabbi Yaakov of Lissa These are profile settings, not a universal ruling for all communities