![Millions of people wake up at the exact same second from using their cell phone as an alarm clock. : r/Showerthoughts Millions of people wake up at the exact same second from using their cell phone as an alarm clock. : r/Showerthoughts](https://i.redd.it/nw76o38qfxk71.jpg)
Millions of people wake up at the exact same second from using their cell phone as an alarm clock. : r/Showerthoughts
![When ever I set up a alarm I always wake up before that alarm goes off, when I don't, I sleep till noon. Can your mind keep track of the time when When ever I set up a alarm I always wake up before that alarm goes off, when I don't, I sleep till noon. Can your mind keep track of the time when](https://styles.redditmedia.com/t5_2w844/styles/communityIcon_krq4riav5m191.png)
When ever I set up a alarm I always wake up before that alarm goes off, when I don't, I sleep till noon. Can your mind keep track of the time when
![Before alarm clocks became widely affordable in the 1940s and 1950s, there were people - called “knocker-uppers” - who had the job of waking up workers during the Industrial Revolution, often by Before alarm clocks became widely affordable in the 1940s and 1950s, there were people - called “knocker-uppers” - who had the job of waking up workers during the Industrial Revolution, often by](https://i.redd.it/4jhdxeejl7g91.jpg)
Before alarm clocks became widely affordable in the 1940s and 1950s, there were people - called “knocker-uppers” - who had the job of waking up workers during the Industrial Revolution, often by
![Westclox Twin Bell Wind Up Alarm clock - used for 4 generations and still ticking strong : r/BuyItForLife Westclox Twin Bell Wind Up Alarm clock - used for 4 generations and still ticking strong : r/BuyItForLife](https://i.redd.it/967kmts335251.jpg)