I'm not sure if we needed the code that I duplicated but I really don't want to
rock the board anymore with this function. This causes all unit tests to pass
and everthing seems okay now?
Testing Done:
Ran the unit tests with TZ values of empty, `Asia/Kathmandu` and `Pacific/Auckland`.
Reviewed at https://reviews.imfreedom.org/r/1238/
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which is based on http://bugzilla.gnome.org/show_bug.cgi?id=122450