[tz] Error display in America/Santiago - tzdata2018i

Pedro Salas Díaz pesd.77 at gmail.com
Tue Mar 19 17:39:54 UTC 2019


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
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