A couple of the types that NumPy supports, which do not appear to be supported in CuPy currently (though please correct me if I'm mistaken), are datetime64 and timedelta64. It would be great to have support for these within CuPy. This is useful when working on array data that may be acquired at some frequency over time.
Yes, they're currently not supported by CuPy.
Datetime64 support on GPU would change my life
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Datetime64 support on GPU would change my life