The simplest method is to use the Modify Fields node. For example, if you have the following test data

The Modify Fields node can be configured to auto-detect the data format as follows:

Which would result in the following output data:

To improve the reobustness of the detection mechanism you can also give the auto-detect mechanism a hint to allow it to resolve ambiguous date values by setting the 'AmbiguousDateResolutionMode' property to a value of 'Month First'
