The year

When the gap is not the gap

A gap is not a constant. For part of every year it is not the number either end would quote.

Part three

8 notes in this part

Fixed, brief, extended and inverted: four ways of handling a seasonal clock shift, named by what they do rather than where they are done.

Reference

A nominal offset is the number two ends tell each other. For six of the ten regime pairs it is wrong for part of every year.

Analysis

The days between one end shifting its clocks and the other shifting theirs belong to neither arrangement, and that is where things break.

Reference

Twenty-one days a year, in two pieces: a fortnight in spring and a week in autumn. The smallest seam and the hardest to diagnose.

Analysis

Three hundred and twenty-three days out of three hundred and sixty-five at an offset neither end would name, from two ordinary rules.

Analysis

Two seams of the same length are different problems if one arrives in one run and the other in two. The drawings carry the part the counts cannot.

Analysis

Four regimes taken two at a time make ten pairs. Six disagree for part of the year; four never disagree, and those four are the finding.

Reference

If the gap is four hours for part of the year and five for the rest, the arrangement has to work at five. Plan against the worst week.

Analysis