This test says otherwise https://www.ncbi.nlm.nih.gov/pubmed/11152980 https://www.ncbi.nlm.nih.gov/pubmed/11152980 METHODS: Data from 21 years of United States

This test says otherwise https://www.ncbi.nlm.nih.gov/pubmed/11152980 https://www.ncbi.nlm.nih.gov/pubmed/11152980 METHODS: Data from 21 years of United States' fatal automobile accidents were gathered. The mean number of accidents on the days at the time of the shifts (Saturday, Sunday and Monday) was compared to the average of the corresponding mean number of accidents on the matching day of the weeks preceding and following the shift. This was repeated for each DST shift. The number of accidents for a particular shift was also correlated with the year of the accidents. RESULTS: There was a significant increase in accidents for the Monday immediately following the spring shift to DST (t=1.92, P=0.034). There was also a significant increase in number of accidents on the Sunday of the fall shift from DST (P<0.002). No significant changes were observed for the other days. A significant negative correlation with the year was found between the number of accidents on the Saturdays and Sundays but not Mondays.