In one-hour windows of two workplace records, 28–37% of between-department pairs reached by five-minute closure had no strict 20-second path

We tested how time bins change potential reach within and between departments in two SocioPatterns workplace records from 2013 and 2015. We used all 108 and 120 nonempty one-hour windows on ten days per record. The reference allowed at most one hop per 20-second contact interval. The coarse upper rule allowed any number of hops within each connected group in a bin. With five-minute bins, 28.4% and 37.2% of reached between-department pairs had no reference path. The means within departments were 10.9% and 15.9%. A coarse rule with one hop per bin instead missed 21.9% and 28.6% of between-department reference pairs. When group closure was also allowed at the native resolution, the unsupported upper shares between departments were 20.6% and 32.8%. In an exploratory pooled check, path-distance composition accounted for 90.4% and 103.5% of the between-minus-within relative error gap. At the same static path length, the error rates were much closer. Pair-level set bounds held in all 524 windows across three horizon and boundary settings. Independent set simulations, fresh source hashes and an exact repeat analysis passed. The package includes the original data, code, pair matrices, figures and instructions. These are repeated records from one workplace context. The findings concern potential paths under stated rules, not actual information transfer, infection, or a population effect.

temporal networks · workplace contacts · reachability · time aggregation · departments · SocioPatterns