Pivot tables have a built-in feature to group dates by year, month, and quarter. In the example shown, a pivot table is used to summarize sales by year and quarter. Once the date field is grouped into years and quarters, the grouping fields can be dragged into separate areas, as seen in the example.
The source data contains two fields: Date, and Sales, and both are used create the pivot table, along with Years, which appears after dates are grouped:
The Date field has been grouped by Years and Quarters:
After grouping, the Years field appears in the field list, and the Date field displays quarters in the form "Qtr1", "Qtr2", etc. Years has been added as a Column field, and Date (Quarters) has been added as a Row field.
Finally, the Sales field has been added as a Value field, and set to Sum values:
and the number format has been set to display currency.
Helper column alternative
As an alternative to automatic date grouping, you can add helper columns to the source data, and use a formula to extract the year, and another formula to create a value for Quarter. This allows you to assign custom abbreviations to quarters, and to calculate fiscal year quarters that don't begin in January if needed. Once you have these values in helper columns, you can add them directly to the pivot table without grouping dates.