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# pandas.Series.dt.unit

Series.dt.unit

  The precision unit of the datetime data.

  Returns the precision unit for the dtype. It means the smallest time frame that can be stored within this dtype.

  Returns:
    str

      Unit string representation (e.g. “ns”).

  See also

  `TimelikeOps.as_unit`

    Converts to a specific unit.

  Examples

      >>> idx = pd.DatetimeIndex(["2020-01-02 01:02:03.004005006"])
      >>> idx.unit
      'ns'
      >>> idx.as_unit("s").unit
      's'