How do you set DIN banister time switches? Ugh someone please have the answer to this.

Ugh someone please have the answer to this.
Answers:    By manually adjust the analog dial. Or my adjusting a time knob... Some you can't set the specific time on they work on a 24 hour cycle. It really merely depends on the unit itself...
Require more information to answer, ie, is it a digitl or analogue timer