Lantech LES-2400-RPS, Руководство пользователя

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SNTP Configuration
SNTP (Simple Network Time Protocol) is a simplified version of NTP which is an
Internet protocol used to synchronize the clocks of computers with some time
reference. Because time usually just advances, the time on different node stations
might be different. With the communicating programs running on those devices, it
would cause time to jump forward and back, a non-desirable effect. Therefore, the
switch provides comprehensive mechanisms to access national time and frequency
dissemination services, organize the time-synchronization subnet and the local clock in
each participating subnet peer.
Daylight Saving Time (DST) is the convention of advancing clocks so that afternoons
have more daylight and mornings have less. Typically clocks are adjusted forward one
hour near the start of spring and are adjusted backward in autumn.

SNTP Client: Enable/disable the SNTP function to get the time from the SNTP
server.

Daylight Saving Time: This function is used to enable/disable Daylight Saving
Period and Daylight Saving Offset fields.

UTC Timezone: Set the location time zone for the switch. The following table lists
different location time zones for your reference.
Local Time Zone Conversion from UTC Time at 12:00 UTC
November Time Zone - 1 hour 11am
Oscar Time Zone -2 hours 10 am
ADT - Atlantic Daylight -3 hours 9 am
AST - Atlantic Standard
EDT - Eastern Daylight
-4 hours 8 am
EST - Eastern Standard
CDT - Central Daylight
-5 hours 7 am