Time-use surveys often report residual evening blocks after paid employment and unpaid care. Firmer Chisel reads those blocks as wood left after the day’s main cut: measurable in aggregate, uneven across households, and never a personal plan.
What the bevel can show
Agency diaries and academic papers that name diary windows, sample frames, and nonresponse limits help place how much “spare” evening time appears on the board. When a study treats secondary earnings separately from residual time, that separation belongs next to any figure later quoted.
What the shaving leaves behind
Fatigue, commuting spillover, and informal care frequently sit outside the measured residual. Two instruments can report different evening depths for the same population. This desk does not convert a residual-hour mark into a sequence for any reader. Corrections: support@firmerchisel.online.