After Receipt number, how many days it will take to get the Approval

I have filed the H1B on May 28th .I have received the receipt number (my company does not share ).I got to know it is in the initial review.How long it will take to get the approval?

You will get your reciept number within 7 working days. You will get your approval in 2 to 6 months duration.Hope this information helps your question. Thanks

Depends on centre , there are petitions (filed before June 1st 2012 ) which have been approved.