def get_hour_resolution(dataframe):
    """Aggregate the data to get one-hour resolution, where the number of minutes is 0 and the number of seconds is 0, so each record is on the hour exactly. Output a new dataframe with one-hour resolution. """

    hour_res_df = dataframe[(dataframe['time_minutes'] == 0) & (dataframe['time_seconds'] == 0)]
    print("Number of rows in hour resolution dataframe: ", len(hour_res_df))

    return hour_res_df