[Python] How to arrange time series data into ascending order

I have a dataframe with timeseries data

Timestamp Values
10-26-22 10.00 AM 1
10-26-22 09.04 AM 5
10.26-22 10.06 AM 6
-------- --------
10-27-22 3.32 AM 9
10-27-22 3.36 PM 5
10-27-22 3.31 PM 8
-------- --------
10-27-22 3.37 AM 8.23
10-28-22 4.20 AM 7.2

I tried to sort the timestamp column into ascending order by :

df.sort_values("Timestamp", ascending = True, inplace= True)

but this code is not working. I want to get the data like this:

Timestamp Values
10-26-22 09.04 AM 1
10-26-22 10.00 AM 5
10-26-22 10.06 AM 6
-------- --------
10-27-22 3.31 AM 9
10-27-22 3.32 PM 5
10-27-22 3.36 PM 8
------ --------
10-27-22 3.37 AM 8.23
10-28-22 4.20 AM 7.2

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