pandas using timestamp as index code example

Example 1: convert column to timestamp pandas

df2 = pd.to_datetime(df['col1'])
df2

Example 2: pandas datetime to unix timestamp

dates = pd.to_datetime(['2019-01-15 13:30:00'])
(dates - pd.Timestamp("1970-01-01")) // pd.Timedelta('1s')  
# Int64Index([1547559000], dtype='int64')