D-Link DCS-5020L User Manual page 29

Section 4 - Configuration
Create a unique name for your camera. Click Next to continue.
Select the time zone that the camera is geographically located
in so that scheduled events occur at the correct time. If your
time zone observes daylight saving, check the Enable Daylight
Saving box and select Auto Daylight Saving to have DST set
automatically or select Set date and time manually to enable
the drop-down menu so that you can set the start and end time
of daylight saving yourself.
Click Next to continue.
D-Link DCS-5222L User Manual 25