Rolling calendar view - choosing a start date

1. What is rolling date period?
2. How do I get Google calendar to show multiple months?

What is rolling date period?

In finance, date rolling occurs when a payment day or date used to calculate accrued interest falls on a holiday, according to a given business calendar. In this case the date is moved forward or backward in time such that it falls in a business day, according with the same business calendar.

How do I get Google calendar to show multiple months?

Click the "Custom View" menu, which is located directly below the Default View menu. Select the time period you want.