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<div class="moz-cite-prefix">use UTC? :)<br>
<br>
On 05/13/2014 10:11 PM, Zoidsoft wrote:<br>
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cite="mid:CAB+ttKwh4dMAvR6W0nsSJnzivNNrv7noNp68f1bkoM61CoP6sg@mail.gmail.com"
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<div dir="ltr">I wonder how they keep aircraft from landing on top
of each other on the runway when the skip forward or back?</div>
<div class="gmail_extra"><br>
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<div class="gmail_quote">On Tue, May 13, 2014 at 4:08 PM, Paul
Eggert <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:eggert@cs.ucla.edu" target="_blank">eggert@cs.ucla.edu</a>></span>
wrote:<br>
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<div>On 05/13/2014 10:49 AM, Steve Allen wrote:<br>
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0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
the line "Planes will crash" becomes pitted against the
lack of evidence that has ever happened.<br>
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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.<br>
<br>
For a recent review of sleep-related concerns, please see:<br>
<br>
Harrison Y. The impact of daylight saving time on sleep and
related behaviours. Sleep Med Rev. 2013 Aug;17(4):285–92. <a
moz-do-not-send="true"
href="http://dx.doi.org/10.1016/j.smrv.2012.10.001"
target="_blank">http://dx.doi.org/10.1016/j.smrv.2012.10.001</a><br>
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