Alarm clocks are used to wake you up at a specific time with a preferred sound. An alarm clock is a timer that is primarily used to wake people from their night's sleep or short naps. However, they are also used for other purposes such as reminders for taking medications, attending meetings, executing tasks, and many more. Alarm clocks are very helpful for people who want to wake up early for work, school, or any events. The main objective of an alarm is to wake up on time and never be late for any activities.