From mboxrd@z Thu Jan  1 00:00:00 1970
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Newsgroups: comp.lang.ada
Date: Thu, 16 Jul 2015 22:12:15 -0700 (PDT)
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Subject: Re: Time_Zone-aware Day_of_Week ?
From: Vadim Godunko <vgodunko@gmail.com>
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Xref: number.nntp.giganews.com comp.lang.ada:194143
Date: 2015-07-16T22:12:15-07:00
List-Id: <comp.lang.ada>

You can try Matreshka, it has some timezone and time formatting support.

http://forge.ada-ru.org/matreshka