In Lesson 2.8 there are the sentences らいしゅう かぞく に あいます (I will meet my family next week.) and しち じ に いきます (I will go at 7 o'clock).
In the first sentence, に is used to show a point of contact, and in the second sentence に is used to note the specific time of an action. In the first sentence, らいしゅう is not followed by に because it is a relative time.
If I wanted to say, “I will meet my family at 7 o'clock,” would I say, しち じ に かぞく に あいます ？
Is using double particles like this reasonable since they're referencing two different things? If so, I suppose this would mean a particle such as に could then be used many times even in relatively short, simple sentences since each one would point to something different?
Thanks a bunch.