DIY Easy Mini Skateboard! (Fingerboard)View Instructable »
Thank you for your comment, I think I missed an important point in the instructions.The RTC (a.k.a. Real Time Clock) has a battery with it. So, no matter when you power the clock, the output time of the RTC module will still be the same.The reason I added the explicit date and time is that my RTC module is not well calibrated, meaning that its output is 25 minutes ahead the actual time.I decided to add the explicit date and time code to make everything work.I will update the Instructables in 24 hours to explain this clearly so that the clock will work for everyone.