You should synchronize the clocks of the controller and the APs to ensure that the logs and reports reflect accurate time stamps. For more information, see Working with Reports and Statistics.
The normal operation of the controller will not be affected if you do not synchronize the clock. The clock synchronization is necessary to ensure that the logs display accurate time stamps. In addition, clock synchronization of network elements is a prerequisite for the following configuration:
Network time is synchronized in one of two ways:
The controller automatically adjusts for any time change due to Daylight Savings time.