[tz] Politics of TZ changes

Zoidsoft zoidsoft at gmail.com
Tue May 13 20:11:31 UTC 2014

I wonder how they keep aircraft from landing on top of each other on the
runway when the skip forward or back?

On Tue, May 13, 2014 at 4:08 PM, Paul Eggert <eggert at cs.ucla.edu> wrote:

> On 05/13/2014 10:49 AM, Steve Allen wrote:
>> the line "Planes will crash" becomes pitted against the lack of evidence
>> that has ever happened.
> 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.
> 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
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