# Age (DateTime)
| **Name** | ***Age*** |
| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Syntax | Age (Date start, Date end, Integer interval) |
| Purpose | To compute the difference between two specified date time values, based on interval type (year, Month etc.) provided in integer form. |
| Description | Compute difference between two dates and return age in specified interval. Valid values for interval: 1=Year, 2=Month, 3=Week, 4=Day, 5=Hour, 6=Minute, or 7=Second |
| Return Type | Int64 |
| Parameters |
start \[System.DateTime]
end \[System.DateTime]
interval \[System.Int32]
|
**Example**
In this example, we will pass date time values, and an integer value (indicating a specific interval) to the function transformation object using a *Variables* object.
Where,
*start* = 01-01-2022
*end* = 05-10-2024
*interval (4 = day)* = 4
In the output window, you can see that the provided interval value, indicating days, has been used to compute the age/difference of days between the two specified date time values.
