def create_date_ftrs(df_ckFraud, col_name):
    """
    create day, hour, minute, second features
    """
    df_ckFraud = df_ckFraud.copy()
    
    df_ckFraud['day'] = df_ckFraud[col_name].dt.day.astype('uint8') ## dt is accessor object for date like properties
    df_ckFraud['hour'] = df_ckFraud[col_name].dt.hour.astype('uint8')
    df_ckFraud['minute'] = df_ckFraud[col_name].dt.minute.astype('uint8')
    df_ckFraud['second'] = df_ckFraud[col_name].dt.second.astype('uint8')
    
    return df_ckFraud