Function to_datetime

dask/dataframe/dask_expr/_collection.py:6085–6112

(arg, meta=None, **kwargs)

@wraps(pd.to_datetime)
def to_datetime(arg, meta=None, **kwargs):
    tz_kwarg = {"tz": "utc"} if kwargs.get("utc") else {}

    (arg,) = _maybe_from_pandas([arg])

    if meta is None:
        if isinstance(arg, Index):
            meta = get_meta_library(arg).DatetimeIndex([], **tz_kwarg)
            meta.name = arg.name
            if PANDAS_GE_300:
                meta = meta.as_unit(
                    get_meta_library(arg).to_datetime(meta_nonempty(arg._meta)).unit
                )
        elif not (is_dataframe_like(arg) or is_series_like(arg)):
            raise NotImplementedError(
                "dask.dataframe.to_datetime does not support "
                "non-index-able arguments (like scalars)"
            )
        else:
            meta = meta_series_constructor(arg)([pd.Timestamp("2000", **tz_kwarg)])
            meta.index = meta.index.astype(arg.index.dtype)
            meta.index.name = arg.index.name
    else:
        meta = make_meta(meta)

    kwargs.pop("infer_datetime_format", None)

    return new_collection(ToDatetime(frame=arg, kwargs=kwargs, meta=meta))


@wraps(pd.to_timedelta)