Is b etween a preposition of time ?
You may find this helpful.... anyways I vote yes!!
between preposition, adverb (TIME)
(also in between) in the period of time that separates two different times or events:
You shouldn't eat between meals.
There is a break of ten minutes between classes.
The shop is closed for lunch between 12.30 and 1.30.
In between sobs, he managed to tell them what had happened.
He visits his parents every month and sometimes in between.