Python Dataframe: Date Columns Reformatting "NaTType does not support strftime" Error

Question

I'm trying to reformat the following column names. They all have been converted to datetime columns already.

The code works for the first 3 columns in my list. However, the last two columns breaks it.

date_columns = ['DTI', 'DTO', 'DTD', 'DTE', 'DTINS']

for i in date_columns:
    df_EVENT5_13[i] = df_EVENT5_13[i].apply(lambda x:x.date().strftime('%m/%d/%Y'))

Below is the error I get:

ValueError: NaTType does not support strftime

Answer 1

try df_EVENT5_13[i] = df_EVENT5_13[i].dt.date