# Write a Pandas program to create a dataframe indexing by date and time.  
 import pandas as pd
print("Create a dataframe, indexing by date and time:")

dt_range = pd.date_range(start ='2020-05-12 07:10:10', freq ='S', periods = 10) 
df_dt = pd.DataFrame({"Sale_amt":[100, 110, 117, 150, 112, 99, 129, 135, 140, 150]},
                            index = dt_range)
print(df_dt)
