Humans are social beings and they loved to communicate with each other. With the transformation of communication nowadays people interact using social media such as Twitter. Even Indonesian president and political figures used twitter to express their feelings, emotions (sentiments) and ideas of different aspects every day. We interested to find out the feeling or emotion (sentiment) of Indonesian president based on his timeline. Our application can determine @SBYudhoyono’s timeline. We used three classes of sentiment: positive, negative and neutral. Model that used to determine timeline sentiment comes from our previous research. We found a good result with accuracy 79, 42% on collected timeline testing set. By using our application we found that Indonesian president timeline dominated by neutral sentiment.