time-switch vs electric switch

time-switch and electric switch both are nouns.

Word	Noun	Adjective	Verb	Adverb
time-switch	Yes	No	No	No
electric switch	Yes	No	No	No

As nouns, electric switch is a hypernym of time-switch; that is, electric switch is a word with a broader meaning than time-switch:

time-switch: a switch set to operate at a desired time
electric switch: control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit

Other hypernyms of time-switch include electrical switch, switch.

time-switch (noun)	electric switch (noun)
a switch set to operate at a desired time	control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit