issue_comments: 1081859463

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https://github.com/pydata/xarray/issues/6412#issuecomment-1081859463 https://api.github.com/repos/pydata/xarray/issues/6412 1081859463 IC_kwDOAMm_X85Ae92H 43635101 2022-03-29T13:16:43Z 2022-03-29T13:18:37Z NONE

I'm using xarray on a Dataset & it's convenient for me to make calculation using DataArray. Here when I want to retrieve the year of datetime, instead of casting back to an array of object & using datetime.year, it's handy to use built-in numpy datetime64 conversion.

It's really confusing astype is not working like numpy does. If you want to keep this behavious maybe add a warning in the docs and log a warning aswell.

 
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