Hello: I'm Pedro Salas Diaz from Chile , and I'm working in TZ change for my servers timezone. When I compile our timezone, I see that timezone is not displayed correctly.

zdump -v America/Santiago | grep 2019 zdump: warning: zone "America/Santiago" abbreviation "-05" lacks alphabetic at start America/Santiago Sun Apr 7 02:59:59 2019 UTC = Sat Apr 6 23:59:59 2019 -03 isdst=1 America/Santiago Sun Apr 7 03:00:00 2019 UTC = Sat Apr 6 23:00:00 2019 -04 isdst=0 America/Santiago Sun Sep 8 03:59:59 2019 UTC = Sat Sep 7 23:59:59 2019 -04 isdst=0 America/Santiago Sun Sep 8 04:00:00 2019 UTC = Sun Sep 8 01:00:00 2019 -03 isdst=1

I found some errors in our apps, because the TZ is not showed as "CLT" nor "CLST". To resolve this, i modified "southamerica" file (these lines) ********************************************************************************** # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Chile 1927 1931 - Sep 1 0:00 1:00 S Rule Chile 1928 1932 - Apr 1 0:00 0 - Rule Chile 1968 only - Nov 3 4:00u 1:00 S Rule Chile 1969 only - Mar 30 3:00u 0 - Rule Chile 1969 only - Nov 23 4:00u 1:00 S Rule Chile 1970 only - Mar 29 3:00u 0 - Rule Chile 1971 only - Mar 14 3:00u 0 - Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - Rule Chile 1973 only - Sep 30 4:00u 1:00 S Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1987 only - Apr 12 3:00u 0 - Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1990 only - Sep 16 4:00u 1:00 S Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1997 only - Mar 30 3:00u 0 - Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - Rule Chile 1998 only - Sep 27 4:00u 1:00 S Rule Chile 1999 only - Apr 4 3:00u 0 - Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - # N.B.: the end of March 29 in Chile is March 30 in Universal time, # which is used below in specifying the transition. Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - Rule Chile 2011 only - May Sun>=2 3:00u 0 - Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 S Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 S # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Santiago -4:42:46 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time -5:00 - CLT 1916 Jul 1 -4:42:46 - SMT 1918 Sep 10 -4:00 - CLT 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile CL%sT 1932 Sep 1 -4:00 - CLT 1942 Jun 1 -5:00 - CLT 1942 Aug 1 -4:00 - CLT 1946 Jul 15 -4:00 1:00 CLST 1946 Sep 1 # central Chile -4:00 - CLT 1947 Apr 1 -5:00 - CLT 1947 May 21 23:00 -4:00 Chile CL%sT ***************************************************************************************** I changed som "-" for "S" and "-03" for "CLST" and "-04" is "CLT". I compiled again and It works well. I send you this information if It is useful. Regards. Pedro Salas Diaz