Another interesting aspect of timezone changes is what along running application should do, once we have the time corrected. Consider a graph of the last 7 days’ rainfall with an X axis labelled by the hour.  Should the labels be redrawn with the revised TZ? Or the old ones kept as-was and only new ones changed?  Does it make more sense to see
8:00 9:00 10:00 11:00 12:00 12:00 1:00
ie with the change visible, rather than all the older data getting changed? I really can't decide, so if anyone knows of UI/perceptual psych work offering a good rationale I’d be interested.

tim
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tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
A)bort, R)etry, I)gnore, V)alium?