While this sort of basic timekeeping is OK for some projects, some projects such as data-loggers, clocks, etc will need to have '''consistant timekeeping that doesnt reset when the Arduino battery dies or is reprogrammed'''. Thus, we include a seperate RTC! The RTC chip is a specialized chip that just keeps track of time. It can count leap-years and knows how many days are in a month, but it doesn't take care of Daylight Savings Time (because it changes from place to place) | While this sort of basic timekeeping is OK for some projects, some projects such as data-loggers, clocks, etc will need to have '''consistant timekeeping that doesnt reset when the Arduino battery dies or is reprogrammed'''. Thus, we include a seperate RTC! The RTC chip is a specialized chip that just keeps track of time. It can count leap-years and knows how many days are in a month, but it doesn't take care of Daylight Savings Time (because it changes from place to place) |