def get_gametime(time_columns):
    """文字列型で表されている試合時刻を、datetime型に変換する関数
    """
    result = []
    for game_time in time_columns:
        prefix_time = f"{datetime.now().year}:{datetime.now().month}:{datetime.now().day}:"
        true_game_time = datetime.strptime(prefix_time+ game_time, "%Y:%m:%d:%H:%M")
        result.append(true_game_time)
    return result

# df.iloc[:, "Time"] = get_gametime(df.iloc[:, "Time"])