The 4-day working week bill passed its second reading in the UK Parliament this week, and the LinkedIn responses have been predictable. Some people are excited. Some are sceptical. Everyone has an opinion.

Most of the conversation is about productivity — can you get the same output in four days? The answer, based on the pilots already run, is mostly yes. Output holds. Wellbeing improves. Absenteeism falls.

But there's a question nobody is asking: if you have less working time, what happens to the time currently spent coordinating meetings?

Where the hours actually go

The average knowledge worker spends somewhere between 15 and 30 percent of their working time in meetings, depending on seniority and industry. That's a well-established number.

Less well-known is the time spent arranging the meetings. Back-and-forth scheduling messages. The "when are you free?" exchange. The Calendly link that takes two days to get a response. The WhatsApp thread that eventually resolves into a confirmed time after six messages.

Research from productivity consultancy Doodle found that professionals lose on average 4.5 hours per week to poorly managed scheduling. That's more than 10% of a standard 40-hour week — just on the process of setting up meetings, not the meetings themselves. In a 32-hour week, that percentage gets worse. Same coordination overhead. Less time to absorb it.

The 4-day week surfaces a hidden tax

The appeal of the 4-day week is regaining time — time for rest, for family, for the things that don't happen during work hours.

But the gains are only real if the inefficiencies of the working week shrink proportionally. And scheduling overhead is one of the stickiest inefficiencies. It doesn't automatically get 20% more efficient just because you have 20% less time. It gets more pressurised.

You have fewer windows to offer. The person you're trying to meet also has fewer windows. The number of possible overlaps shrinks. The ping-pong round trip of finding a time can take longer, not shorter, when availability is compressed.

What good scheduling looks like in a compressed week

A few things change when you have less time. Asynchronous scheduling becomes more valuable. If you can propose a time and have it confirmed without a real-time back-and-forth, you're not spending any of your compressed week waiting for a reply.

Timezone awareness matters more. With a shorter working window, a scheduling mistake — a missed meeting due to timezone confusion — is a proportionally bigger hit to the week.

Friction at the booking step costs more. A meeting that was going to be booked but wasn't because the Calendly link never got clicked is now a bigger missed opportunity.

All of this points in the same direction: when working time is more valuable, the cost of scheduling inefficiency goes up. The tools and habits that worked fine at 40 hours need to be sharper at 32.

The right question to ask

If the 4-day week is coming, the question to ask before it arrives isn't just "can I do my job in less time." It's "what does my scheduling infrastructure look like when every hour matters more?"

For most people, the answer involves reducing the number of steps between "let's talk" and "it's booked." Less link-sending. More proposals that land inside the conversation and get confirmed without friction.

That's not a small-product change. It's a workflow change. But it's one worth making before your week gets shorter.