[tz] Time Zone Standards

[Jonathan Leffler]

There are no formal standards. Countries do as they please, when they
please, with any amount of notice.  There are guidelines — please give us
lots of notice of planned changes— but many countries do not follow them.


On Tue, Jan 29, 2019 at 23:46 Samah Kareem <samahkareem2012 at gmail.com>
wrote:

> Hello All
> I want to ask about references,  countries can change their time zone
> depending on, I want name of standards, guidelines if any.
>
> Regards
> Samah Kareem
>
-- 
Jonathan Leffler <jonathan.leffler at gmail.com>  #include <disclaimer.h>
Guardian of DBD::Informix - v2018.1031 - http://dbi.perl.org
"Blessed are we who can laugh at ourselves, for we shall never cease to be
amused."
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