ConciseFormatter doesn't always label start of year properly #17958
Description
The January in this plot doesn't get labeled as 2021 in this plot:
using
AutoDateLocator(minticks=20, maxticks=30)you get
There are no
zeroeshelping at the year mark here (actually the zero are month because of the wrong level), which makes >for a pretty fun read of this plot.
People wonder: is it 2020-2021 or 2021-2022 ? Why is thereJunin the bottom right?
Originally posted by @leolchat in #17269 (comment)
import matplotlib.pyplot as plt
import numpy as np
plt.rcParams['date.converter'] = 'concise'
import matplotlib.dates as mdates
locator = mdates.AutoDateLocator(minticks=20, maxticks=30)
dates = [np.datetime64( '2020-06-06 18:08:30'), np.datetime64('2021-06-06 18:08:31')]
fig, ax = plt.subplots()
ax.plot(dates, [0, 1])
ax.set_xlim(np.datetime64( '2020-06-06 18:08:30.3'), np.datetime64( '2021-06-06 18:08:30.5'))
ax.xaxis.set_major_locator(locator)
plt.show()