xStack DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual 
DGS-3400:4#config time_zone operator + hour 2 min 30 
Command: config time_zone operator + hour 2 min 30 
 
Success. 
 
DGS-3400:4#
 
 
config dst 
Purpose 
Used to enable and configure time adjustments to allow for the use of Daylight 
Savings Time (DST). 
Syntax  config dst [disable | repeating {s_week <start_week 1-4,last> | s_day <start_day 
sun-sat> | s_mth <start_mth 1-12> | s_time start_time hh:mm> | e_week 
<end_week 1-4,last> | e_day <end_day sun-sat> | e_mth <end_mth 1-12> | e_time 
<end_time hh:mm> | offset [30 | 60 | 90 | 120]} | annual {s_date start_date 1-31> | 
s_mth <start_mth 1-12> | s_time <start_time hh:mm> | e_date <end_date 1-31> | 
e_mth <end_mth 1-12> | e_time <end_time hh:mm> | offset [30 | 60 | 90 | 120]}] 
DST can be enabled and configured using this command. When enabled this will 
adjust the system clock to comply with any DST requirement. DST adjustment effects 
system time for both manually configured time and time set using SNTP service.  
  disable - Disable the DST seasonal time adjustment for the Switch. 
repeating - Using repeating mode will enable DST seasonal time adjustment. 
Repeating mode requires that the DST beginning and ending date be specified using a 
formula. For example, specify to begin DST on Saturday during the second week of 
April and end DST on Sunday during the last week of October. 
• 
• 
s_day – Configure the day of the week in which DST begins. 
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• 
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• 
• 
annual - Using annual mode will enable DST seasonal time adjustment. Annual mode 
requires that the DST beginning and ending date be specified concisely. For example, 
specify to begin DST on April 3 and end DST on October 14. 
s_week - Configure the week of the month in which DST begins. 
e_week - Configure the week of the month in which DST ends. 
e_day - Configure the day of the week in which DST ends. 
s_mth - Configure the month in which DST begins. 
e_mth - Configure the month in which DST ends. 
s_time – Configure the time of day to begin DST. 
e_time - Configure the time of day to end DST.  
s_date - Configure the specific date (day of the month) to begin DST.  
Description 
<start_week 1-4,last> - The number of the week during the month in which 
DST begins where 1 is the first week, 2 is the second week and so on, last is 
the last week of the month.  
<end_week 1-4,last> - The number of the week during the month in which 
DST ends where 1 is the first week, 2 is the second week and so on, last is 
the last week of the month. 
<start_day sun-sat> - The day of the week in which DST begins expressed 
using a three character abbreviation (sun, mon, tue, wed, thu, fri, sat)  
<end_day sun-sat> - The day of the week in which DST ends expressed 
using a three character abbreviation (sun, mon, tue, wed, thu, fri, sat) 
<start_mth 1-12> - The month to begin DST expressed as a number. 
<end_mth 1-12> - The month to end DST expressed as a number. 
<start_time hh:mm> - Time is expressed using a 24-hour clock, in hours and 
minutes. 
<end_time hh:mm> - Time is expressed using a 24-hour clock, in hours and 
minutes. 
•  <start_date 1-31> - The start date is expressed numerically. 
 
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