CsvHelper changing how dates and times are output

I am using CsvHelper to write some CSV files and want to change the format of my dates and times to something specific. Following the advice from https://stackoverflow.com/a/31817621/223742 I can successfully create maps for each of my classes.

However it has the distinct disadvantage that I now need to create custom maps for all the classes that I want to export. As I always want all the fields exported this becomes a maintenance nightmare as I have to amend maps each time.

So is there any simple way to tell CsvHelper to write using a specific format?