Some patterns of sleep quality and Daylight Saving Time across countries: a predictive and exploratory analysis
This research addresses the problem of understanding how DST affects sleep patterns globally, which is relevant for public health and policy, but it is incremental as it builds on existing knowledge with new geographical insights.
The study analyzed sleep durations across 61 countries to examine the impact of Daylight Saving Time (DST), finding that DST-observing countries generally report longer sleep durations, but this effect varies with latitude, with shorter durations at lower latitudes and longer at higher latitudes.
In this study we analyzed average sleep durations across 61 countries to examine the impact of Daylight Saving Time (DST) practices. Key metrics influencing sleep were identified, and statistical correlation analysis was applied to explore relationships among these factors. Countries were grouped based on DST observance, and visualizations compared sleep patterns between DST and non-DST regions. Results show that, on average, countries observing DST tend to report longer sleep durations than those that do not. A more detailed pattern emerged when accounting for latitude: at lower latitudes, DST-observing countries reported shorter sleep durations compared to non-DST countries, while at higher latitudes, DST-observing countries reported longer average sleep durations. These findings suggest that the influence of DST on sleep may be moderated by geographical location.