How do cell phones know the current date & time?

Question by Markel: How do cell phones know the current date & time?
Do cell phones use cell phone satellites from outer space to get the current date and time? How does that work?


Best answer:

Answer by Bomber
Of of them do, except I don't think outer space, you connect to a tower, and that tower connects to the satellites, however some cellphones just have you put in the time manually.

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