Dates and times are stored as serial numbers in Microsoft Excel, allowing for quick calculations and comparisons. Serial numbers for dates start on January 1, 1900, while times are decimalized ...

Time As with the Date number format, make sure you select the correct locale in the Number tab of the Format Cells dialog box (Ctrl+1). Then, choose a time type.

If the Grouping Dates option in the AutoFilter menu is not enabled, then you will not have the ability to group Excel date filters by months. Let us explain what you need to do.