Hello Heir, since you've already got your artwork all done follow these steps:
Create an object for each graphic (4 objects: second hand, minute hand, hour hand, clock face)
Start with the clock face. Right click on one of the objects and open Properties > Summary and name your object (clock_face or whatever you want).
Also in the summary tab set the Left and Top positions (lets say 200 left and 300 top).

Go to the States tab and under Appearance browse for your clock face graphic.
Hit apply.

Repeat those steps for the second hand, minute hand, and hour hand. Make sure you set the left and top positions to the same left and top positions of the clock face (200 left 300 top).
Now, right click on the DXBuilder icon (which should be in your system tray) and choose List Objects.
Draw a selection around all three clock hands.
Right click on this selection and choose set parent. Set the parent to the clock face.
Now select all 4 of your objects, right click, and group as "clock" (or whatever you prefer)
After that, go to the clock face Properties > General. Create a new script and paste the script below.
Sub Object_onscriptenter
object.SetTimer 1, 1000
End Sub
Sub object_ontimer1
t = FormatDateTime(time(),3)'---Get your system time
h= hour(t)'---Get current hour
desktopx.object("hour_hand").Rotation= h * 30 '---Multiply current hour to get correct rotation
m= minute(t)'---Get current minute
desktopx.object("minute_hand").Rotation= m * 6 '---Multiply current minute to get correct rotation
s= second(t)'---Get current second
desktopx.object("second_hand").Rotation= s * 6 '---Multiply current second to get correct rotation
End Sub
Hope this helps.