To mask date values with random masking, either configure a range of output dates or choose a variance. When you configure a variance, choose a part of the date to blur. Choose the year, month, day, hour, minute, or second. The Data Masking transformation returns a date that is within the range you configure.
You can configure the following masking rules when you mask a datetime value:
Range
Sets the minimum and maximum values to return for the selected datetime value.
Blurring
Masks a date based on a variance that you apply to a unit of the date. The Data Masking transformation returns a date that is within the variance. You can blur the year, month, day, hour, minute, or second. Choose a low and high variance to apply.