Allied Telesis SwitchBlade x3100 Series - System Time - Sntp

Introduction System Time - SNTP
Software Reference for SwitchBlade x3100 Series Switches (Setting Up the Switch)
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1.6.6 System Time - SNTP
When the SBx3112 is first installed, local time can be set up using the command SET SYSTEM TIME.
The SBx3112 can also synchronize with a network time server using the SNTP protocol, which requires an
SNTP server with a host name or IP address to be configured.
1.6.6.1 Time Zones and Daylight Savings Time
There is support for Time-zones and Daylight Saving Time (DST) on the SBx3112. With this feature the
SBx3112-based times correctly reflect current local time and whether DST is in effect if desired. Standard
North American Time-zones and their DST settings (start and end date/time and UTC offset) are supported.
In addition the user may specify a custom time-zone with a start and end date/time and UTC offset for DST.
Note that this feature includes standard DST rules for the following US time-zones:
• Eastern Time - Standard Time: -5:00, DST UTC: -4:00
• Central Time - Standard Time: -6:00, DST UTC: -5:00
• Mountain Time - Standard Time: -7:00, DST UTC: -6:00
• Pacific Time: - Standard Time: -8:00, DST UTC: -7:00
• Alaska Time - Standard Time: -9:00, DST UTC: -8:00
• Hawaii Time - Standard Time: -10:00 (Hawaii does not observe DST)
The all standard US time-zones DST start and end date/time is defined as the second Sunday in March at 02:00
and the first Sunday in November at 02:00 respectively.
The user defined time-zone is named CUSTOM and has a start date and time, end date and time, and a UTC
offset. Date is either specified as a month and day combination or as the “third Thursday of March” (as an
example).
As an example, with the EASTERN time-zone specified by the command:
SET SYSTEM TIMEZONE=EASTERN DST=ON
The SHOW SYSTEM TIME would display one of the following:
• Info (033608): System time is 2007-08-16 13:26:20 (DST)
• Info (033608): System time is 2007-02-16 13:26:20 (STANDARD)
The SHOW SYSTEM TIME FULL would display:
--- System Time ---
Date.................................2007-01-01 Time................................. 11:00:01 (STAN-
DARD)
UTC Offset........................... -06:00:00
Day Light Saving
Status............................. ON
Time-zone.......................... CENTRAL
Start.............................. 2ND.SUN.MAR/02:00:00 (2007-03-11)
End................................ 1ST.SUN.NOV/02:00:00 (2007-11-04)
DST UTC Offset..................... -05:00:00