pandas timestamp series to string?

Consider the dataframe df

df = pd.DataFrame(dict(timestamp=pd.to_datetime(['2000-01-01'])))

df

   timestamp
0 2000-01-01

Use the datetime accessor dt to access the strftime method. You can pass a format string to strftime and it will return a formatted string. When used with the dt accessor you will get a series of strings.

df.timestamp.dt.strftime('%Y-%m-%d')

0    2000-01-01
Name: timestamp, dtype: object

Visit strftime.org for a handy set of format strings.