Approximately time for interview after i130

Hello :
I’m an USC and my wife is from Mexico we submitted the i130 form to Texas enter with receipt date of dec 14 2018. I know the approval should be soon but after that how long would you estimate to be the interview for her green card? ( it’s in Juarez)

Green card interview is usually conducted in 1-3 months once your I-130 has been approved with US citizen sponsor.

Thank you. One more question. Is there a problem if my wife goes to Canada to study while the process is on going?

You wife can travel but she would need a valid US visa to enter US again.

Really Sir, within 3 months person get visa interview date once I-130 has been approved if sponsor is US Citizen?
I will be so happy if I get visa call in 3 months.