请问哈佛斯坦福有开始发面试邀请吗，一般什么时候开始。

http://www.gsb.stanford.edu/mba/admission/interviews.html

Approximate Interview schedule

Round 1    Early November to Mid-January

Round 2    Mid-January to Early April

Round 3    Mid-April to Mid-May

Oops, you asked about Harvard too.  They started sending out invitations awhile ago and will keep sending them out up till the last day (1/16) I believe.

Good luck!