I need to use the following field in a date range

I need to use the following field in a date range [cln enc date - date] It's a date-formula field.

I am trying to check for current dates, within last week (7 days)
last week 8-14 days
and then 15-21 days.

I try Boolean logic with AND and use ToDate, Today, etc but getting errors, such as mixing date and time. I just want date calculations and don't care about time of day.

I have image of the date fields there are. There are a lot of date fields, but I didn't create most of these. The [cln enc date - date] is the field that is used to match encounter records.

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Bob T.
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