convert pandas dataframe column of dtype object to date type

Question

I have a dataframe df and has a column by name timeframe of dtype object

column_a	timeframe
One	nov-21
Two	jun-90

I would like to convert timeframe column to date type but this conversion fails with error Out of bounds nanosecond timestamp: 1-11-21 00:00:00

df['timeframe'] = pd.to_datetime(df['Date'])

Answer 1

Specify the format:

df['timeframe'] = pd.to_datetime(df['timeframe'], format="%b-%y", errors="coerce")