The rising and setting of the sun impacts our body clocks or circadian rhythm. As it gets darker in the evening, the body starts to produce the sleep hormone melatonin - which helps people nod off. In a new paper, Maulik Jagnani, an economist at Cornell University, argues that a single time zone leads to a decline in quality of sleep, especially of poor children. This, he says, ends up reducing the quality of their education.
This is how it happens. The school day starts at more or less the same time everywhere in India but children go to bed later and have reduced sleep in areas where the sun sets later. An hour's delay in sunset time reduces children's sleep by 30 minutes. Using data from the India Time Survey and the national Demographic and Health Survey, Mr Jagnani found that school-going children exposed to later sunsets get fewer years of education, and are less likely to complete primary and middle school.
He found evidence that suggested that sunset-induced sleep deprivation is more pronounced among the poor, especially in periods when households face severe financial constraints. The poor may lack the financial resources to invest in sleep-inducing goods like window shades, separate rooms, indoor beds and adjust their sleep schedules," he told me. Published in Current Science, the article adds new arguments to the debate. If lines of longitude are drawn exactly a degree apart, they will divide the Earth into zones.
Theoretically, the time zone followed by any place should relate to its longitudinal distance from any other place. Political boundaries, however, mean that time zones are often demarcated by bent lines rather than straight lines of longitude.
This has led to the argument that early sunrise in the easternmost parts — the Northeast — causes the loss of many daylight hours by the time offices or educational institutions open, and that early sunset, for its part, leads to higher consumption of electricity. Are you planning a trip or preparing for a chat or online meeting? Just confirming the current time? We work hard to make certain the time and information presented here on WorldTimeServer.
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