If you are an iPhone user, you should never set the date on your phone to January 1, 1970 (video below).
A video posted to YouTube on Feb. 11 uncovered a bizarre glitch causing the iPhone to permanently crash when manually set to that date.
It is unclear what causes the crash, and even Apple’s Genius technicians can’t figure out how to restore iPhones affected by the glitch as there is no known way to fix this problem.
If you were to set the date to January 1, 1970 manually, which is not advisable, and then restart your phone, your screen will be permanently frozen, rendering the phone completely useless.
According CNN Money, a possible cause of the problem could be that Unix time, which the iPhone uses as the basis of its clock, as do many other gadgets, began at midnight GMT on January 1, 1970. So, setting your clock to that time is essentially setting the clock to zero. However, it is still unclear why this causes the iPhone to completely shut down when the clock is at zero.
It’s safe to say that iPhone users should avoid trying this at home.