Here's a heuristic we use at TimeAlign:
Was this minute unregretted?
Not every minute has to be productive. Not every minute has to be spent on your biggest goal. But every minute should be a minute you'd make the same choice about, if you had it back.
What regretted time looks like
You know it when you feel it. The scroll that starts at nine pm and ends at midnight. The meeting you didn't need to attend. The worry loop you couldn't step out of. The email thread that consumed forty minutes and moved nothing forward.
None of these are moral failures. They're just… regretted. You wouldn't choose them again. They slipped in through an unguarded gap.
What unregretted time looks like
Hard work that mattered. A conversation that landed. A walk you took because you needed one, not because you were performing rest. A novel. A nap. Forty minutes with your kid, fully present, on a Tuesday night.
Unregretted doesn't mean productive. Half the hours we'd keep are rest, play, or presence. The heuristic isn't about maximizing output. It's about whether, on reflection, the hour was a fair trade for a slice of your finite life.
Why the heuristic works
Most productivity frameworks ask you to optimize for something external — a goal, a target, a metric. Unregretted time optimizes for something internal: the version of you that looks back on the week and can honestly endorse it.
That's a quieter standard. It's also a more honest one. It respects that a good life contains rest, weirdness, wandering, and presence — not just achievement.
How to use it
At the end of each day, ask: which hours, if I had them back, would I spend differently? That's your regretted time.
Not to feel bad about. To look at with curiosity. What was happening? Low energy? Poor environment? A commitment that doesn't serve you anymore? Each regretted hour is a clue about a small change that would shift the next week.
Small compounded shifts become a different year. A different year becomes a different decade. A different decade becomes a different life.
That's the whole game.