Version 6.8  101  Mediant 2600 E-SBC 
User's Manual   11. Date and Time 
11.3  Configuring Daylight Saving Time 
You can apply daylight saving time (DST) to the date and time of the device. DST defines a 
date range in the year (summer) where the time is brought forward so that people can 
experience more daylight. DST applies an offset of up to 60 minutes (default) to the local 
time. For example, Germany Berlin has DST from 30 March to 26 October, where the time 
is brought forward by an hour (e.g., 02:00 to 03:00 on 30 March). Therefore, you would 
configure the DST offset to 60 minutes (one hour). 
  To configure DST using the Web interface: 
1.  Open the Application Settings page (Configuration  tab > System  menu > 
Application Settings). 
2.  Scroll down to the 'Day Light Saving Time' group: 
Figure  11-3: Configuring DST 
 
3.  From the 'Day Light Saving Time' (DayLightSavingTimeEnable) drop-down list, select 
Enable. 
4.  From the 'DST Mode' drop-down list, select the range type for configuring the start and 
end dates for DST: 
•  Day of year: The range is configured by exact date (day number of month), for 
example, from March 30 to October 30. If 'DST Mode' is set to Day of year, in the 
'Start Time' (DayLightSavingTimeStart) and 'End Time' (DayLightSavingTimeEnd) 
drop-down lists, configure the period for which DST is relevant. 
•  Day of month: The range is configured by month and day type, for example, 
from the last Sunday of March to the last Sunday of October. If 'DST Mode' is set 
to Day of month, in the 'Day of Month Start' and 'Day of Month End' drop-down 
lists, configure the period for which DST is relevant. 
5.  In the 'Offset' (DayLightSavingTimeOffset) field, configure the DST offset in minutes. 
6.  If the current date falls within the DST period, verify that it has been successful applied 
to the device's current date and time. You can view the device's date and time in the 
Regional Settings page (see 'Configuring Date and Time Manually' on page 99).