Default to shorter meeting lengths
Schedule 25- and 50-minute meetings instead of 30 and 60 — the meeting expands only as far as the slot allows.
Key takeaways
- What it is: Schedule 25- and 50-minute meetings instead of 30 and 60 — the meeting expands only as far as the slot allows.
- Why it works: Meetings are among the clearest demonstrations of Parkinson's Law: a meeting scheduled for an hour reliably fills an hour, while the same agenda covered in 45 minutes produces the same outcome with time back. Compression works because it sharpens focus: participants arrive more prepared and the conversation stays on-agenda when time is visibly finite. The 25/50-minute format also creates buffer time between meetings, reducing the cognitive switching cost of back-to-back scheduling.
- Evidence: Practitioner experience / self-report; no formal study.
- Avoid: Compressing meeting time without compressing the agenda — a 25-minute meeting covering 60 minutes of agenda creates pressure without focus, which is worse than the original.
Why it works
Meetings are among the clearest demonstrations of Parkinson's Law: a meeting scheduled for an hour reliably fills an hour, while the same agenda covered in 45 minutes produces the same outcome with time back. Compression works because it sharpens focus: participants arrive more prepared and the conversation stays on-agenda when time is visibly finite. The 25/50-minute format also creates buffer time between meetings, reducing the cognitive switching cost of back-to-back scheduling.
How to do it
- 1Change your calendar default from 30 and 60 minutes to 25 and 50 minutes.
- 2Share an agenda before the meeting so participants know what needs to be covered — ambiguity is a major driver of expansion.
- 3End meetings on time or early; do not use remaining minutes to fill with new topics.
What the evidence says
AnecdotalThere is no direct RCT on 25 vs 30-minute meeting formats. The general finding that time constraints improve meeting focus and reduce tangential discussion is consistent with meeting effectiveness research and the cognitive switching literature. The 25/50 format is practitioner convention popularized by time management advocates.
Honest caveat: Meeting compression works best when combined with a clear agenda and decision-rights clarity; without those, shorter meetings often just reconvene.
Common mistake
Compressing meeting time without compressing the agenda — a 25-minute meeting covering 60 minutes of agenda creates pressure without focus, which is worse than the original.
IX Coach can time your coaching sessions with built-in compression — completing the session goals in a shorter window when possible and summarizing what was covered, so nothing is left open-ended.
Practice this with IX Coach →