DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide 
22 
Parameter  Description 
To: Week of the Month 
Select week of the month that summer time will end. 
To: Day of the Week 
Select the day of the week that summer time will end. 
To: Month 
Select the month that summer time will end. 
To: Time 
Select the time of the day that summer time will end. 
Offset 
Enter the number of minutes to add during summer time. The default value is 60. 
The range of this offset is 30, 60, 90 and 120. 
 
The fields that can be configured in Date Settings are described below: 
Parameter  Description 
From: Date of the Month 
Select date of the month that summer time will start. 
From: Month 
Select the month that summer time will start. 
From: Year 
Enter the year that the summer time will start. 
From: Time 
Select the time of the day that summer time will start. 
To: Date of the Month 
Select date of the month that summer time will end. 
To: Month 
Select the month that summer time will end. 
To: Year 
Enter the year that the summer time will end. 
To: Time 
Select the time of the day that summer time will end. 
Offset 
Enter the number of minutes to add during summer time. The default value is 60. 
The range of this offset is 30, 60, 90 and 120. 
Click the Apply button to accept the changes made. 
 
SNTP Settings 
The Simple Network Time Protocol (SNTP) is a protocol for synchronizing computer clocks through the Internet. It 
provides comprehensive mechanisms to access national time and frequency dissemination services, coordinate the 
SNTP subnet of servers and clients, and adjust the system clock on each participant. 
This window is used to display and configure the SNTP settings for the Switch. 
To view the following window, click System > Time and SNTP > SNTP Settings, as shown below: 
 
Figure 3-18 SNTP Settings Window 
 
The fields that can be configured in SNTP Global Settings are described below: