/Start of bad advice
@Jim Lee. I think you are referring to noInterrupts() which indeed will stop millis. 
If you power off your arduino then millis will stop counting too and even reset to 0 next time you apply power 
/End of bad advice
/Start of bad advice
@Jim Lee. I think you are referring to noInterrupts() which indeed will stop millis.
If you power off your arduino then millis will stop counting too and even reset to 0 next time you apply power
/End of bad advice