def _add_adjustment(adjustment, days):
    """
    Adds "adjustment" data for entries that cross midnight.
    :param adjustment: Column, start time, end time, and duration of entry.
    :param blocks: List of days
    """
    column = adjustment.pop("column")
    if column not in days:
        days[column] = []

    # Real adjustment entry.
    days[column].append(
        {
            "time": adjustment["duration"].seconds / 60,
            "label": _format_label(**adjustment),
            "method": adjustment["method"],
        }
    )

    Adds "adjustment" data for entries that cross midnight.
    :param adjustment: Column, start time, end time, and duration of entry.
    :param blocks: List of days
    
reports/graphs/feeding_pattern.py