W32time not updating updating multiple columns in mysql
The time service also uses another set of algorithms to determine which of the configured time sources is the most accurate.When the time service has determined which time sample is best, based on the above criteria, it adjusts the local clock rate to allow it to converge toward the correct time.This accurate time source is called a reference clock.An NTP server that acquires its time directly from a reference clock occupies a stratum that is one level higher than that of the reference clock.Resources that acquire time from the NTP server are two steps away from the reference clock, and therefore occupy a stratum that is two higher than the most accurate time source, and so on.As a computer's stratum number increases, the time on its system clock may become less accurate.The Windows Time Service Manager is responsible for initiating the action of the NTP time providers included with the operating system.The Windows Time Service Manager controls all functions of the Windows Time service and the coalescing of all time samples.
The time synchronization process involves the following steps: If a computer has been designated as a time server, it can send the time on to any computer requesting time synchronization at any point in this process.Every computer that is running the Windows Time service uses the service to maintain the most accurate time.In most cases, it is not necessary to configure the Windows Time service.If the time difference between the local clock and the selected accurate time sample (also called the time skew) is too large to correct by adjusting the local clock rate, the time service sets the local clock to the correct time.
This adjustment of clock rate or direct clock time change is known as clock discipline.
Ideally, all computer clocks in an AD DS domain are synchronized with the time of an authoritative computer.