Is Android using NTP to sync time?

Question

Do Android Devices use the network time protocol (NTP) to synchronize the time?

In my Device-Settings I see a checkbox with the following text \"synchronize with net

Answer 1

I have a Samsung Galaxy Tab 2 7.0 with Android 4.1.1. Apparently it does NOT sync to ntp. I loaded an app that says my tablet is 20 seconds off of ntp, but it can't set it unless I root the device.