Three years post-HBS, I now sit on the other side of the table helping recruit MBA interns and full-time candidates. Here's what the timeline actually looks like, because the schools will give you a sanitized version and the reality is more stressful.
September/October of your first year: Consulting and banking recruiting is basically already over. McKinsey, BCG, Bain, Goldman, JPM all lock up their summer associate classes frighteningly early. If you want MBB consulting, your coffee chats and networking should start before you even arrive on campus.
October-November: Tech companies (FAANG, growth-stage) begin PM recruiting. Amazon and Google run structured APM/MBA PM programs with formal app deadlines. Meta has a residency-style PM program. These move fast too but slightly less insane than consulting.
January-March: The "second tier" of recruiting (not a value judgment, just timing): corporate strategy, general management programs, startups, PE/VC, healthcare companies, some government roles. These feel more relaxed but that's partly because there are fewer structured slots.
What nobody says out loud: If you're going to a school ranked 15-25, the recruiting pipelines are thinner. Companies don't always recruit on-campus. You're doing more cold outreach, leaning harder on alumni, and competing against M7 candidates for the same spots. Knowing this isn't to discourage you. It's to set expectations so you're not caught off guard when on-campus recruiting feels sparse.
A few things that actually matter for post-MBA job search: Your summer internship is basically a 10-week audition for a return offer. Treat it that way. Second-year recruiting (for people who didn't get return offers or pivoted) is genuinely harder. Less formal structure. The school brand matters enormously for the first job. Less so for subsequent jobs. So think about your first role carefully.
Happy to answer specific questions about consulting recruiting, MBA PM programs, or what hiring managers at post-MBA companies actually care about in behavioral rounds.