[FEA] pandas DatetimeIndex.indexer_between_time

[raybellwaves]

I watched @shwina's GTC talk (https://register.nvidia.com/flow/nvidia/gtcs24/attendeeportaldigital/page/sessioncatalog/session/1695219773174001AmnA thanks Ashwin I really enjoyed it!)

Is your feature request related to a problem? Please describe.
No. I just noticed there wasn't an issue for DatetimeIndex.indexer_between_time. I also enjoyed the user experience that %%cudf.pandas.profile points users to raise issues to highlight pandas API that falls back to CPU (https://github.com/rapidsai/cudf/blob/branch-24.06/python/cudf/cudf/pandas/profiler.py#L300).

Describe the solution you'd like

import pandas as pd
pd.date_range("2023-01-01", "2023-01-02", freq="1h").indexer_between_time("09:00", "16:00")
import cudf
cudf.date_range("2023-01-01", "2023-01-02", freq="1h").indexer_between_time("09:00", "16:00")

Describe alternatives you've considered
There may be a cudf work around in the meantime for a user who needs indexer_between_time that could be captured at https://docs.rapids.ai/api/cudf/stable/cudf_pandas/

Additional context
Could create a new issue template with the "pandas" label (https://github.com/rapidsai/cudf/issues?q=is%3Aopen+is%3Aissue+label%3Apandas) to be used at https://github.com/rapidsai/cudf/blob/branch-24.06/python/cudf/cudf/pandas/profiler.py#L297 fixed a bug at #15381

[shwina]

Thanks, @raybellwaves!

I think this could be implemented in terms of the existing datetime methods. For instance, idx.indexer_between_time('09:00', '17:00') would be 9 <= idx.dt.hour < 17 - unless I'm missing something.

This would make a great contribution if you (or anyone else) is interested in taking it on!

[srinivasyadav18]

Hi @shwina, I would like to take up on this issue if no one has started working on this.

[shwina]

Fantastic! No one has yet so please feel free to take it on. Don't hesitate to reach out to us either here or on the RAPIDS slack if you have any questions!

[er-eis]

@srinivasyadav18, still working on this?

[srinivasyadav18]

@er-eis Yes, I have been trying it for few days, but could not make much progress. Please feel free to work on it!

[er-eis]

sounds good, i'll take this then!