AlenkaF commented on issue #39809:
URL: https://github.com/apache/arrow/issues/39809#issuecomment-1914681651
The comparison of DataTypes is done in Arrow C++ and for timestamps it is
comparing the exact timezone string (it is saved as a string) as you have
mentioned.
To do a logical comparison of timezones one should probably use a dedicated
library for that. In Python you could try with:
```python
>>> import pytz
>>> pytz.timezone(pa.timestamp("us", "UTC").tz)
<UTC>
>>> pytz.timezone(pa.timestamp("us", "utc").tz)
<UTC>
>>> pytz.timezone(pa.timestamp("us", "utc").tz) ==
pytz.timezone(pa.timestamp("us", "UTC").tz)
```
and then separately compare the timestamp unit:
```python
>>> pa.timestamp("us", "utc").unit == pa.timestamp("us", "UTC").unit
True
```
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