[Enh]: Support Expr.str.to_time

[yuuuxt]

We would like to learn about your use case. For example, if this feature is needed to adopt Narwhals in an open source project, could you please enter the link to it below?

Trying to replace polars with narwhals and is blocked by str.to_time.

(seems I can use str.to_datetime().cast(nw.Time)?)

Please describe the purpose of the new feature or describe the problem to solve.

To make more use of narwhals.

Suggest a solution if possible.

https://docs.pola.rs/api/python/dev/reference/expressions/api/polars.Expr.str.to_time.html

If you have tried alternatives, please describe them below.

No response

Additional information that may help us understand your needs.

No response

[yuuuxt]

p.s. I met pola-rs/polars#26924 when trying to switch from polars to narwhals. Is it necessary to add warning in to_datetime doc about possible inconsistency?

[MarcoGorelli]

Thanks for the request, seems reasonable

Can't remember if we have a Time dtype, we may need to add it

[dangotbanned]

Can't remember if we have a Time dtype, we may need to add it

Here you go https://narwhals-dev.github.io/narwhals/api-reference/dtypes/#narwhals.dtypes.Time