How We Build a Day: Baby Feeding Clock Infographic

The source: twenty-four hours in a spreadsheet#

The raw data is embarrassingly simple. Eight rows, two columns: a timestamp and a bottle volume in milliliters. Nothing unusual — the same shape of log that thousands of parents keep on their phones while they learn a new human’s rhythm.

The interesting question is not how to store it. The interesting question is whether a single day’s log has any visual structure at all, or whether it is just noise. A table of eight rows hides that. A day-clock shows it in about three seconds.

Diary timeline#

The clock poster below still uses one representative eight-feeding day for the radial sketch. The strip chart is the full scan from the paper diary. Pick a calendar day to see times and volumes on a straight 24-hour axis.

The day at a glance#

The four summary figures at the bottom of the poster are the full arithmetic story of the day. They are worth lifting out of the canvas and into the page, because they are the numbers a reader takes away even if they never look at the clock itself.

Twenty-four hours — arithmetic summary

Total intake / 24 h990 mlAcross eight bottles — an average of ~124 ml per feeding, close to the median.

Average interval3 hRounded over eight gaps wrapping around midnight — the day's baseline cadence.

Longest gap5 h 32 mBetween the 03:43 and 09:15 feedings — the visible silence on the clock's left side.

The two 180 ml bottles sit at the edges of the long silences: one at 00:50, right before the overnight gap, and one at 19:30, right before the evening wind-down. Nobody in the household called that a pattern out loud. The clock made it visible.

What this visualization is NOT#

This is a personal data piece, not a clinical tool. It rewards a careful reading of one day; it does not tolerate being read as a longitudinal dataset, and it was not designed to.

The value of the piece is not the math. The math is trivial. The value is the visual grammar — a radial data-object that holds twenty-four hours of a new life and is still readable at a glance a week, a month, or a year later. That is what this case is really about.