Custom Group dynamic dates
From All n One's bxp software Wixi
Overview
If building a custom group it can be useful for Worklists and CrossLinked lists to have dynamic dates in the queries. This article shows how to add dynamic dates to your data group limiting.
In the custom data fields page you are adding in a keyword.
Please note that your data must be in universal date time format for the filters to work.
For all the combinations please review Standard_field_replacements#Date_Time_fields
For all the possible letter combinations please review http://www.w3schools.com/asp/func_dateadd.asp