D-Link DSL-2740U User Manual page 44

Section 3 - Configuration
TIME
Check the Enable NTP Server.
Select specific time server to use from the NTP Server Used drop-down
menu.
Select your operating time zone from the Time Zone drop-down menu.
Check the Enable Daylight Saving if needed and then select the
proper Daylight Saving Offset drop-down menu. Configure the
Daylight Saving Dates from start date to end.
Click on the Save Settings button to apply your settings.
D-Link DSL-2740U User Manual 44