Recent questions/discussions on GeoNet got me thinking about an ArcPy Data Access module limitation I hadn't thought about in a while, specifically the lack of date and time support when working with NumPy arrays. Given where date and time support in NumPy was in 2012 when Esri introduced the ArcPy Data Access module, I can understand why support was missing then, but I think the time is right for them to start supporting it.
I went ahead and created the suggestion on the ArcGIS Ideas site: ArcPy Data Access Support for numpy.datetime64 and Python datetime. I also logged an enhancement request with Esri Support: ENH-000086993: Update the ArcPy Data Access module to include support for numpy.datetime64 and Python datetime. If you would like to see date and time support for the NumPy-related methods in the ArcPy Data Access module, I encourage you to go promote the idea on ArcGIS Ideas and submit your own use case to Esri Support to have your customer number attached the aforementioned enhancement request.