Only if you reset or power-up your Arduino at exactly midnight late Saturday night. That is the correct value for a 24 hour period in milliseconds, but not having a reference to when the millis() first started counting would make this method a show stopper I would think. Also the accuracy of millis(…

Re: need help is this right

Topic		Replies	Views
How to print millis in [hh:mm:ss] format? Programming	19	10680	May 5, 2021
Arduino clock accuracy Interfacing	5	17684	May 6, 2021
Real time clock a waste of time ? Bar Sport	2	1143	May 6, 2021
I tested Arduino time keeping without RTC Programming	16	17493	May 5, 2021
Clock with Arduino Troubleshooting	36	17933	May 6, 2021