Record for 20 minutes, keep the guest for 45: how long should a podcast interview be?

Sunny Ray · Feb 28, 2026 · 5 min read

For a show that sells, the recording is the short part. The conversation after it is where the deal lives.

So how long should a podcast interview be? For a B2B show built to start relationships, my answer since February is about 20 minutes of recording inside a 45-minute slot. Here is how I got there, and why the usual advice does not apply to this kind of show.

Why 30-minute slots felt rushed

For weeks I ran 30-minute slots, back to back. Some days six of them. On paper it was efficient. In practice it felt terrible.

On a call on February 27 with another founder who runs a show, I described it like this:

So I was doing half an hour, and I felt rushed, and I would just go from, like, one podcast to the next, and I'd have to try and reconnect with them, and it was just awkward.

The recording would end, the guest would just be warming up, and I would have to cut them off to make the next slot. The best part of the conversation, the part where they stop performing and start telling you what is actually going on in their business, was the part I was skipping.

Record 20, talk 25

So I changed the format. His feedback had been that he ran longer slots, 45 minutes to an hour. I split the difference:

So I just expanded it to 45 minutes. And so now I'm going to start. Yeah, I'm going to start doing still the 20 minute podcast and then spending some time to just talk and try and build a relationship on the back end.

Twenty minutes on air. The rest off air. Same guest, same booking, completely different outcome. The recording gives them a platform. The time after gives you the relationship. You learn what they are working on, whether there is a fit, and whether they are a connector or an operator, without any of it feeling like a sales call.

On our February 26 closers call we added one habit to go with it: write a short note right after every recording. Flag the persona clearly. Some guests are great connectors and weak operators, and they are partnership material, not customers. Others are the opposite. If the note is not written while the conversation is fresh, the person following up has no visibility into who they are talking to.

He went the other way to meet me: down from an hour to 45 minutes, and adding short 15-minute slots on his calendar for users who come through his website.

Charles's switch to 20 to 25 minutes

The day before, on our February 26 closers call, Charles had made the same move. He was switching to a 20 to 25 minute recording format. Someone pointed out that 20 or 25 minutes is really short for a podcast. The answer on the call: not so short with intellectually fast people, which is exactly who the show is for.

That is the key. A B2B show is not entertainment for a passive audience. The guests are founders, investors and operators who think fast and talk faster. Twenty sharp minutes with someone like that produces more usable content than an hour of meandering.

Earlier that week, on February 24, a member of our team walking a PR founder through our shows put it from the audience side: a lot of people do not have time for 30-minute or hour-long content. The formats getting traction were 15 minutes or so, plus clips.

What the long-form shows do, and why a B2B show is different

General podcast advice is built around long episodes. Beamly's guide on podcast length suggests 30 to 60 minutes for interview shows.

That advice optimizes for listeners. If your business is ad revenue or audience growth, longer episodes with loyal listeners make sense.

A B2B show built for pipeline optimizes for something else: the guest. The guest is the audience that matters most, and their time is the scarcest thing in the booking. A 20-minute recording is an easy yes for a busy executive. It is also short enough that they will actually share it, and dense enough that it cuts into several good clips.

And the results are not small. The week before that call, I interviewed the person who helped architect the first version of Uber. The post from that episode went viral by my standards: about 100,000 impressions, 30 retweets and 100 likes, way above my usual. A 20-minute recording did that. Length was never the constraint.

No-shows and double booking: the cost of tight slots

There is one more reason to leave room. The founder I was talking to on February 27 said no-shows had become common, and he had been a few minutes late himself because of double-booked slots running over. When a guest does not show, he gets an email saying they signed in, checks whether a follow-up is even worth it, and often finds it was not a great fit anyway.

Tight back-to-back slots make all of that worse. One late start cascades through the day. A 45-minute block with 20 minutes of recording absorbs a late guest, a technical glitch or a conversation that deserves an extra ten minutes.

The format I use now

• Book 45 minutes on the calendar.
• Five minutes to settle in and check audio.
• About 20 minutes recorded, focused on the guest's story.
• The rest off air: what are you working on, where are you stuck, who should I meet.
• Tell the guest the recording is about 20 minutes. It makes yes easier.

Short show, long relationship. See the shows we run.

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