ForAnyValue:DateNotEquals
compares a list of datetimes in a request to a list of datetimes in your policy. Datetime comparisons compare down to the second; so for everything except the precise second specified in your policy will match the condition.
To match a request, the context key must exist in the request and at least one datetime in the request must NOT match any of datetimes in your policy.
You can NOT use policy variables in the value of this operator.

