Chapter 3 Managing Cisco SIP IP Phones
Setting the Date, Time, and Daylight Savings Time
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Cisco SIP IP Phone 7960 Administrator Guide
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•
dst_start_time—Time of day on which DST begins. Valid values are 
hour/minute (02/00) or hour (14:30). 
•
dst_stop_time—Time of day on which DST ends. Valid values are 
hour/minute (02/00) or hour (14:30). 
Step 3
To configure absolute DST, specify values for the following parameters or to 
configure relative DST, proceed to Step 4:
•
dst_start_day—Day of the month on which DST begins.
Valid values are 1 through 31 for the days of the month or 0 when specifying 
relative DST to specify that this field be ignored and that the value in the 
dst_start_day_of_week parameter be used instead.
•
dst_stop_day—Day of the month on which DST ends.
Valid values are 1 through 31 for the days of the month or 0 when specifying 
relative DST to specify that this field be ignored and that the value in the 
dst_stop_day_of_week parameter be used instead.
Step 4
To configure relative DST, specify values for the following parameters:
•
dst_start_day_of_week—Day of the week on which DST begins. 
Valid values are Sunday or Sun, Monday or Mon, Tuesday or Tue, Wednesday 
or Wed, Thursday or Thu, Friday or Fri, Saturday or Sat, or Sunday or Sun or 
1 through 7 with 1 being Sunday and 7 being Saturday. When specifying the 
name of the day, the value is case-sensitive and should be typed as cited in 
this description.
•
dst_start_week_of_month—Week of month in which DST begins.
Valid values are 1 through 6 and 8 with 1 being the first week and each 
number thereafter being subsequent weeks and 8 specifying the last week in 
the month regardless of which week the last week is.