# Custom groups on date time elements

The Define Custom Groups page for date time elements enables custom groups on ranges of values.

Custom groups on date time elements

Customization type | Parameters | Description
--- | --- | ---
Ranges | Ranges (in sequential order) | The name of the value ranges that you define.
| Create range: New range name From Earliest Date To Latest Date | A template that you complete to define a value range.
| Item Name | An optional name that you can give to the custom group. Default value: column name followed by (custom).

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