Grouping by Date/Time
Problem
You have a PivotTable with a date field and want to choose whether to group calculations by year, quarter, month, and so on.
Solution
By default, Excel automatically groups any date or time fields you use for its rows and columns. For example, if you have a PivotTable with a date field and you add the field to the PivotTable Fields pane’s Rows section, Excel automatically groups its values by year, quarter, and month. Similarly, if you add a time field to the Rows section, Excel automatically groups its values by hour.
Tip
Turn off automatic grouping for date/time fields in Excel for Windows by choosing File ⇒ Options ⇒ Data and unchecking the “Disable automatic grouping of Date/Time columns in PivotTables” option. If you’re using Excel for Mac, you can find this option by choosing Excel ⇒ Preferences ⇒ Tables & Filters.
Once you’ve added a date/time field to the PivotTable, you can manually adjust how it’s grouped. Select one of the date/time cells, choose PivotTable Analyze ⇒ Group ⇒ Group Selection to open the date/time Grouping dialog box, and then select how you want to group the data by clicking—or holding down the Ctrl key and clicking—the relevant options. When you click OK, Excel applies the grouping (see Figure 1).
Figure 1. The Grouping dialog box for date/time fields and the ...
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