[tz] 2014 DST changes in Egypt, again

Tim Parenti tim at timtimeonline.com
Thu Jun 5 01:26:41 UTC 2014

In reviewing the recent changes, I noticed that three of the four
transitions for Africa/Cairo in 2014 were defined as occurring at 24:00,
while a third was defined at 23:00s.  Looking back, I noticed there is a
lot of inconsistency in this regard, which doesn't seem to have been

The attached patch replaces all transitions to standard time in
Africa/Cairo at 23:00s with 24:00; it also redefines 2010 Ramadan
transitions which occurred at 0:00 as occurring at 24:00 of the previous
day.  I haven't touched more general transitions at 0:00 or 0:00s since
many of those allow rules to be defined succinctly (e.g., lastFri 0:00).
 This patch did not change the output of zdump in my tests.

Tim Parenti

On 4 June 2014 12:35, Paul Eggert <eggert at cs.ucla.edu> wrote:

> Thanks for the heads-up.  This most likely affects 2015 and later, too;
> I've tried to come up with a pattern.  Attached is a proposed patch, which
> I've pushed into the experimental repository.  Please give it a try.  We'll
> need another stable release soon.
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