ArticleScientific reports2018
Latitudinal trends in human primary activities: characterizing the winter day as a synchronizer.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Assessing the best hour to start the day: an appraisal of seasonal daylight saving time.Royal Society open science · 2025Article
- Seasonal and Regional Differences in Eating Times in a Representative Sample of the Brazilian Population.Nutrients · 2023Article
- It is time to understand daylight saving time.Sleep · 2023Article
- The long term impact of Daylight Saving Time regulations in daily life at several circles of latitude.Scientific reports · 2019Article
- Seasonal synchronization of sleep timing in industrial and pre-industrial societies.Scientific reports · 2019Article
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1 author.
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Abstract
This work analyzes time use surveys from 19 countries (17 European and 2 American) in the middle latitude (38-61 degree) accounting for 45% of world population in this range. Time marks for primary activities are contrasted against light/dark conditions. The analysis reveals winter sunrise synchronizes labor start time below 54 degree, occurring within winter civil twilight. Winter sunset is a source of synchronization for labor end times. Winter terminator punctuate meal times in Europe: dinner occurs 3 h after winter sunset time within 1 h; 40% narrower than variability of dinner local times. The sleep-wake cycle of laborers is shown to be related to winter sunrise whereas standard population's appears to be irrespective of latitude. The significance of the winter terminator depends on two competing factors average labor time (~7 h30 m) and the shortest photoperiod. Winter terminator gains significance when both roughly matches. That is within a latitude range from 38 degree to 54 degree. The significance of winter terminator as a source of synchronization is also related to contemporary year round time schedules: the shortest photoperiod represents the worst case scenario the society faces.
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