On 05/13/2014 10:49 AM, Steve Allen wrote:I would guess that air safety issues concerning daylight saving time are more about the transitions than about when the transition rules change. Although it was long assumed that people readily compensate for DST transitions, more recent research suggests that sleep loss persists for several days, and that this can increase automobile accident rates. As far as I know, DST's effect on air safety has never been studied; one might presume it's smaller than in automobile safety since pilots need to adjust to time zone changes anyway, but DST also affects ground crews who don't move that much.
the line "Planes will crash" becomes pitted against the lack of evidence that has ever happened.
For a recent review of sleep-related concerns, please see:
Harrison Y. The impact of daylight saving time on sleep and related behaviours. Sleep Med Rev. 2013 Aug;17(4):285–92. http://dx.doi.org/10.1016/j.smrv.2012.10.001