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In this paper, we proposed a new alarm clock application using the Android system. We combined fuzzy systems with the social networking facility of Facebook as applied to the design of an alarm clock. The purpose of alarm clocks is to wake people up. In general, the ring tone of an alarm clock is the same, and people gradually become accustomed to the ring tone. Therefore, alarm clocks may not wake people up immediately. We presented a new alarm clock that is made more personal and interesting by the use of novel ring tones. We detected the time between when the alarm clock starts ringing and when it is turned off, and then we used methods from fuzzy systems to find appropriate ring tones. In addition, we had also combined our new alarm clock with some features of the social networking site, Facebook, to make the experience of using the alarm clock more enjoyable. From the observed results, we can determine that this application can wake a user up immediately.