How do I write a rolling date query?

[Christine Williams]

I need to write a query that will provide a rolling 30, 60 and 90 day look from current date.  I've tried using the now(90d) but must not know exactly how to write it because I'm getting an error "Function 'now' expected '0' arguments but received '1'."

[Derek Fields]

don't use now(). just write "dueDate > 30d" 

[Christine Williams]

thanks! That is helpful for items that are 90 days out.  I want to see items that are due in 30 days, 60 days then 90 days.  

[Nic Brough _Adaptavist_]

Use 60d and 90d in the same way.

[lenajeannette_smith]

Is there a way to do a rolling 90 day query; for example, JAN FEB MAR, FEB MAR APR, MAR APR MAY; realizing that some months will have >90 days?  Or will the > 30, >60 >90 work?  If so, can you provide an example of the query using year, 2021 ?