html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue https://github.com/pydata/xarray/issues/4236#issuecomment-660181397,https://api.github.com/repos/pydata/xarray/issues/4236,660181397,MDEyOklzc3VlQ29tbWVudDY2MDE4MTM5Nw==,2448579,2020-07-17T15:47:46Z,2020-07-17T15:47:46Z,MEMBER,"> 'm using other functions like dateparse, or timedelta inside the preprocess function to calculate the dayofyear (which itself is derived from a ipywidget). `ds.time.dt.dayofyear` should do this for you: https://xarray.pydata.org/en/stable/time-series.html#datetime-components","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,659142789