def format_index_raw(data):
    """Create DatetimeIndex for the Dataframe localized to the timezone provided
    as the label of the third column.

    Parameters
    ----------
    data: Dataframe
        Must contain columns 'Year' and 'DOY'. Timezone must be found as the
        label of the third (time) column.

    Returns
    -------
    data: Dataframe
        The data with a Datetime index localized to the provided timezone.
    """
    tz_raw = data.columns[3]
    timezone = TZ_MAP.get(tz_raw, tz_raw)
    year = data.Year.apply(str)
    jday = data.DOY.apply(lambda x: '{:03d}'.format(x))
    time = data[tz_raw].apply(lambda x: '{:04d}'.format(x))
    index = pd.to_datetime(year + jday + time, format="%Y%j%H%M")
    data = data.set_index(index)
    data = data.tz_localize(timezone)
    return data