How long does it take for an application to be reviewed by Google before being published to the market?

Question

Google Play

It's been the second day since I sent the application, neither hearing nor spirit.

Answer 1

2-4 hours. Robots do it.
But one day I updated the application, but it did not pass the test and became generally unavailable
. Why is the apk not updated on Google Play?
This is what happens when Google changes the rules.