How to extract only the month and day from a datetime object in Python?

To extract only the month and day from a datetime object in Python, we can use the DateFormatter() class.

steps

Set the figure size and adjust the padding between and around the subplots.
Make a dataframe, df, of two-dimensional, size-mutable, potentially heterogeneous tabular data.
Create a figure and a set of subplots.
Plot the dataframe using plot() method.
Set the axis formatter, extract month and day.
To display the figure, use show() method.

Example

import numpy as np
import pandas as pd
from matplotlib import pyplot as plt, dates

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

df = pd.DataFrame(dict(time=list(pd.date_range("2021-01-01 12:00:00", periods=10)), speed=np.linspace(1, 10, 10)))

fig, ax = plt.subplots()

ax.plot(df.time, df.speed)
ax.xaxis.set_major_formatter(dates.DateFormatter('M:%m\nD:%d'))

plt.show()