It's not possible to customize time ranges in static HTML reports at the moment. We'll consider adding such feature in the future versions of the program.
Please note that the dynamic HTML reports available in the Enterprise edition allow you to choose any date ranges while viewing reports, you can find a report sample at http://demo.weblogexpert.com/Login.as...
Please note that the dynamic HTML reports available in the Enterprise edition allow you to choose any date ranges while viewing reports, you can find a report sample at http://demo.weblogexpert.com/Login.as...