pandas.Timedelta.floor

Timedelta.floor(self, freq)

возвращает новый Timedelta, округленный до данного разрешения

Параметры:	`freq : a freq string indicating the flooring resolution`

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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.25.0/reference/api/pandas.Timedelta.floor.html