Gnulib module: tzset
Portability problems fixed by Gnulib:
TZhas been set by Cygwin.
Portability problems not fixed by Gnulib:
TZenvironment variable, consisting of a time zone abbreviation containing exactly three ASCII letters with no daylight saving time or angle brackets, and with no support for
tzdatabase settings like
TZ='America/New_York'. Even this subset does not work on applications built via the Universal Windows Platform, as it does not make environment variables like
TZavailable to applications.