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Cisco Sx350, SG350X, SG350XG, Sx550X & SG550XG Series Managed Switches, Firmware Release 2.2.5.x 96
 
Administration: Time Settings
Synchronized system clocks provide a frame of reference between all devices on the network. 
Network time synchronization is critical because every aspect of managing, securing, 
planning, and debugging a network involves determining when events occur. Without 
synchronized clocks, accurately correlating log files between devices when tracking security 
breaches or network usage is impossible.
Synchronized time also reduces confusion in shared file systems, as it is important for the 
modification times to be consistent, regardless of the machine on which the file systems 
reside. 
For these reasons, it is important that the time configured on all of the devices on the network 
is accurate.
NOTE The device supports Simple Network Time Protocol (SNTP) and when enabled, the device 
dynamically synchronizes the device time with time from an SNTP server. The device operates 
only as an SNTP client, and cannot provide time services to other devices. 
This section describes the options for configuring the system time, time zone, and Daylight 
Savings Time (DST). It covers the following topics: 
• System Time Configuration
•SNTP Modes
• System Time
• SNTP Unicast
• SNTP Multicast/Anycast
• SNTP Authentication
•Time Range
• Recurring Time Range