Icelanders are considering changing their time measurement system to better sync with circadian rhythms, reports Iceland Review.

Extensive research of the effect of the clock being set too early in Iceland will begin this month, the darkest period of the year. Earlier studies have indicated that the discrepancy in time measurement and the biological clock may lead to increased health problems.

Since 1968 the clocks in Iceland have been set according to Greenwich meantime and the time remains unchanged between summer and winter. That means that noon in Reykjavík occurs at 1:30 pm on average, as stated on the University of Iceland Science Web.