The Windows time synchronization is Microsoft Corporation’s implementation of the standard Windows SNTP w32time. This method is also referred to as unicast synchronization. With this form of time synchronization, all routers can route User Datagram Protocol (UDP) traffic. Windows time synchronization may have a larger time interval in which devices are out of sync with the SNTP master time server due to skewing and convergence.
If you use Windows time synchronization, you must define a device time server in the Site Director using the Device Time Servers attribute.
Note: If you implement an intentional time change for your site, in less than 5 minutes, all other devices on the site update with the new time with Windows time synchronization.