id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
1991435225,PR_kwDOAMm_X85fV3DW,8449,Use concise date format when plotting,14371165,closed,0,,,2,2023-11-13T20:32:22Z,2024-03-13T21:41:34Z,2023-11-21T19:26:24Z,MEMBER,,0,pydata/xarray/pulls/8449,"<!-- Feel free to remove check-list items aren't relevant to your change -->

- [x] Tests added
- [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst`

```python
import matplotlib.pyplot as plt
import xarray as xr

airtemps = xr.tutorial.open_dataset(""air_temperature"")
air = airtemps.air - 273.15
air1d = air.isel(lat=10, lon=10)

plt.figure()
air1d.plot()
```
Before:
![image](https://github.com/pydata/xarray/assets/14371165/904bba6d-c889-4f38-98ce-b21e360fa9a0)


After:
![image](https://github.com/pydata/xarray/assets/14371165/e3fe67ed-07e6-4933-b4a0-7ade6f3c35cd)
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