list rpms by date

Command Description
rpm -qa --queryformat "Package: %{NAME} \t Version: %{VERSION} \t Installed: %{INSTALLTIME:date}\n" | grep $_DATE get a list of packages installed on a certain date (date format: 19 Mar 2019)
rpm -qa --queryformat "%{NAME}-%{VERSION}.%{RELEASE} INSTALLED: %{INSTALLTIME:date}\n" | grep "$(date +"%b %Y")" print packages installed this month