Harvard Business Review's recent cover story makes the case for prioritising time over money, and making daily decisions accordingly. Unfortunately, writes Harvard Business School professor Ashley Whillans, most of us do just the opposite.

One of the most intriguing points in the article is this: "We overestimate the amount of time needed to enjoy an experience."

The result, according to Whillans? "We end up wasting small pockets of free time that we could use more effectively. Five minutes spent socialising with a colleague or 20 minutes on an elliptical machine often have more powerful mood benefits than we expect."

Whillans doesn't specify the ways we waste those small pockets of free time, but I immediately thought about checking email or browsing social media in the five or 10 minutes between meetings.

That's not enough time to do anything enjoyable, the thinking goes, so we fill it up mindlessly.

One broad lesson here is the importance of approaching free time with intentionality. As time-management expert Laura Vanderkam writes in her book Off the Clock, "Few people would show up at work at 8am with no idea about what they'd do until 1pm, and yet people will come home at 6pm having given no thought to what they will do until 11pm."

Like Whillans, Vanderkam specifically recommends socialising with friends and family, noting that those who make time for the important people in their lives are more likely to say they generally have time for the things they want to do. (Vanderkam suspects that socialising causes the feeling of freedom, and not the other way around.)

"People expand time," she writes.

Another broad lesson is that we're notoriously poor predictors of how any experience – like working out or chatting with a coworker – will make us feel.

Indeed, a 2014 study published in the Journal of Experimental Psychology: General found that people are happier when they talk to a fellow passenger on their commute – even though they think they'd be happier if they kept to themselves.

Bottom line: Time (even five minutes of it) is a precious commodity. Use it wisely.

This article was originally published by Business Insider.

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