You Reply: I'm constructing an assignment once I want my Arduino to execute some code at given hours of the day, as an instance one at 19:00 and some other at 06:00. I recognize that with an RTC module I'm able to do that without problems, however, how am I able to try this without an RTC module? I do not want to have to join my Arduino to a computer neither to the net. It does now not additionally ought to be particular, a few minutes off would be adequate.
My board is an Uno R3.