rok commented on issue #50667:
URL: https://github.com/apache/arrow/issues/50667#issuecomment-5128540941
Thanks for running these!
Perhaps we can narrow it down - could you try normalizing the index to one
timezone immediately after every Parquet read and rerun your benchmark? E.g.:
```python
from datetime import timezone
df = pd.read_parquet(path, engine="pyarrow", pre_buffer=False)
df.index = df.index.tz_convert(timezone.utc)
```
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