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title: DateTimeUnitOfMeasure
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  - Marketing Cloud
---
# DateTimeUnitOfMeasure

An enumeration of the possible units of measure for time values in data extension retention settings.

| Name     | Description                                                                                     |
| -------- | ----------------------------------------------------------------------------------------------- |
| `Days`   | Indicates that the time value used for data retention of data extensions is measured in days.   |
| `Months` | Indicates that the time value used for data retention of data extensions is measured in months. |
| `Weeks`  | Indicates that the time value used for data retention of data extensions is measured in weeks.  |
| `Years`  | Indicates that the time value used for data retention of data extensions is measured in years.  |