import datetime
import numpy as np
import matplotlib.pyplot as plt

base = datetime.datetime(2005, 2, 1)
dates = [base + datetime.timedelta(hours=(2 * i)) for i in range(732)]
N = len(dates)
np.random.seed(19680801)
y = np.cumsum(np.random.randn(N))

fig, ax = plt.subplots(layout='constrained', figsize=(6, 6))
ax.plot(dates, y)
ax.set_xlim(np.datetime64('2005-02'), np.datetime64('2005-04'))
ax.tick_params(rotation=45)
xticklabels = ax.get_xticklabels()

for label in xticklabels: 
    label.set_wrap(False)
plt.savefig('plot1.png')
print("(plot1) first x-tick label position:", xticklabels[0].get_position())

for label in xticklabels: 
    label.set_wrap(True)
fig.draw_without_rendering()

for label in xticklabels: 
    label.set_wrap(False)
plt.savefig('plot2.png')
print("(plot2) first x-tick label position:", xticklabels[0].get_position())