How long should I wait on a response from this employer?

I was in an interview where I was getting interviewed by three people. After the interview

First person: did you send him the test online? 2nd person: no I’ll do it later.

I emailed them the next day thanking them for the interview and questioned about the personality test, it’s been like 35 hours and no reponse. Should I be worried? They did tell me they had more interviews coming up.

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