diff --git a/src/test/regress/expected/timestamptz.out b/src/test/regress/expected/timestamptz.out
index 69d3965c60..7226670962 100644
--- a/src/test/regress/expected/timestamptz.out
+++ b/src/test/regress/expected/timestamptz.out
@@ -1773,24 +1773,24 @@ SELECT * FROM TIMESTAMPTZ_TST ORDER BY a;
 --Cleanup
 DROP TABLE TIMESTAMPTZ_TST;
 -- test timestamptz constructors
-set TimeZone to 'America/Santiago';
+set TimeZone to 'America/New_York';
 -- numeric timezone
 SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33);
         make_timestamptz         
 ---------------------------------
- Sun Jul 15 08:15:55.33 1973 CLT
+ Sun Jul 15 08:15:55.33 1973 EDT
 (1 row)
 
 SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33, '+2');
         make_timestamptz         
 ---------------------------------
- Sun Jul 15 02:15:55.33 1973 CLT
+ Sun Jul 15 02:15:55.33 1973 EDT
 (1 row)
 
 SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33, '-2');
         make_timestamptz         
 ---------------------------------
- Sun Jul 15 06:15:55.33 1973 CLT
+ Sun Jul 15 06:15:55.33 1973 EDT
 (1 row)
 
 WITH tzs (tz) AS (VALUES
@@ -1799,23 +1799,23 @@ WITH tzs (tz) AS (VALUES
     ('+10:00:1'), ('+10:00:01'),
     ('+10:00:10'))
      SELECT make_timestamptz(2010, 2, 27, 3, 45, 00, tz), tz FROM tzs;
-       make_timestamptz        |    tz     
--------------------------------+-----------
- Fri Feb 26 23:45:00 2010 CLST | +1
- Fri Feb 26 23:45:00 2010 CLST | +1:
- Fri Feb 26 23:45:00 2010 CLST | +1:0
- Fri Feb 26 23:45:00 2010 CLST | +100
- Fri Feb 26 23:45:00 2010 CLST | +1:00
- Fri Feb 26 23:45:00 2010 CLST | +01:00
- Fri Feb 26 14:45:00 2010 CLST | +10
- Fri Feb 26 14:45:00 2010 CLST | +1000
- Fri Feb 26 14:45:00 2010 CLST | +10:
- Fri Feb 26 14:45:00 2010 CLST | +10:0
- Fri Feb 26 14:45:00 2010 CLST | +10:00
- Fri Feb 26 14:45:00 2010 CLST | +10:00:
- Fri Feb 26 14:44:59 2010 CLST | +10:00:1
- Fri Feb 26 14:44:59 2010 CLST | +10:00:01
- Fri Feb 26 14:44:50 2010 CLST | +10:00:10
+       make_timestamptz       |    tz     
+------------------------------+-----------
+ Fri Feb 26 21:45:00 2010 EST | +1
+ Fri Feb 26 21:45:00 2010 EST | +1:
+ Fri Feb 26 21:45:00 2010 EST | +1:0
+ Fri Feb 26 21:45:00 2010 EST | +100
+ Fri Feb 26 21:45:00 2010 EST | +1:00
+ Fri Feb 26 21:45:00 2010 EST | +01:00
+ Fri Feb 26 12:45:00 2010 EST | +10
+ Fri Feb 26 12:45:00 2010 EST | +1000
+ Fri Feb 26 12:45:00 2010 EST | +10:
+ Fri Feb 26 12:45:00 2010 EST | +10:0
+ Fri Feb 26 12:45:00 2010 EST | +10:00
+ Fri Feb 26 12:45:00 2010 EST | +10:00:
+ Fri Feb 26 12:44:59 2010 EST | +10:00:1
+ Fri Feb 26 12:44:59 2010 EST | +10:00:01
+ Fri Feb 26 12:44:50 2010 EST | +10:00:10
 (15 rows)
 
 -- these should fail
@@ -1861,30 +1861,29 @@ SELECT make_timestamptz(1881, 12, 10, 0, 0, 0, 'Europe/Paris') AT TIME ZONE 'UTC
 SELECT make_timestamptz(1910, 12, 24, 0, 0, 0, 'Nehwon/Lankhmar');
 ERROR:  time zone "Nehwon/Lankhmar" not recognized
 -- abbreviations
-SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'CLST');
-       make_timestamptz        
--------------------------------
- Wed Dec 10 10:10:10 2008 CLST
+SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EST');
+       make_timestamptz       
+------------------------------
+ Wed Dec 10 10:10:10 2008 EST
 (1 row)
 
-SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'CLT');
-       make_timestamptz        
--------------------------------
- Wed Dec 10 11:10:10 2008 CLST
+SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EDT');
+       make_timestamptz       
+------------------------------
+ Wed Dec 10 09:10:10 2008 EST
 (1 row)
 
 SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'PST8PDT');
-       make_timestamptz        
--------------------------------
- Wed Dec 10 15:10:10 2014 CLST
+       make_timestamptz       
+------------------------------
+ Wed Dec 10 13:10:10 2014 EST
 (1 row)
 
 RESET TimeZone;
 --
 -- Test behavior with a dynamic (time-varying) timezone abbreviation.
 -- These tests rely on the knowledge that MSK (Europe/Moscow standard time)
--- moved forwards in Mar 2011 and that VET (America/Caracas standard time)
--- moved backwards in Dec 2007.
+-- moved forwards in Mar 2011 and backwards again in Oct 2014.
 --
 SET TimeZone to 'UTC';
 SELECT '2011-03-27 00:00:00 Europe/Moscow'::timestamptz;
@@ -1995,100 +1994,64 @@ SELECT '2011-03-27 04:00:00 MSK'::timestamptz;
  Sun Mar 27 00:00:00 2011 UTC
 (1 row)
 
-SELECT '2007-12-09 02:00:00 America/Caracas'::timestamptz;
+SELECT '2014-10-26 00:00:00 Europe/Moscow'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 06:00:00 2007 UTC
+ Sat Oct 25 20:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:29:59 America/Caracas'::timestamptz;
+SELECT '2014-10-26 00:59:59 Europe/Moscow'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 06:29:59 2007 UTC
+ Sat Oct 25 20:59:59 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:30:00 America/Caracas'::timestamptz;
+SELECT '2014-10-26 01:00:00 Europe/Moscow'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 07:00:00 2007 UTC
+ Sat Oct 25 22:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:30:01 America/Caracas'::timestamptz;
+SELECT '2014-10-26 01:00:01 Europe/Moscow'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 07:00:01 2007 UTC
+ Sat Oct 25 22:00:01 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:59:59 America/Caracas'::timestamptz;
+SELECT '2014-10-26 02:00:00 Europe/Moscow'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 07:29:59 2007 UTC
+ Sat Oct 25 23:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 03:00:00 America/Caracas'::timestamptz;
+SELECT '2014-10-26 00:00:00 MSK'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 07:30:00 2007 UTC
+ Sat Oct 25 20:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 03:00:01 America/Caracas'::timestamptz;
+SELECT '2014-10-26 00:59:59 MSK'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 07:30:01 2007 UTC
+ Sat Oct 25 20:59:59 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 04:00:00 America/Caracas'::timestamptz;
+SELECT '2014-10-26 01:00:00 MSK'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 08:30:00 2007 UTC
+ Sat Oct 25 22:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:00:00 VET'::timestamptz;
+SELECT '2014-10-26 01:00:01 MSK'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 06:00:00 2007 UTC
+ Sat Oct 25 22:00:01 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:29:59 VET'::timestamptz;
+SELECT '2014-10-26 02:00:00 MSK'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 06:29:59 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 02:30:00 VET'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 07:00:00 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 02:30:01 VET'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 07:00:01 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 02:59:59 VET'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 07:29:59 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 03:00:00 VET'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 07:30:00 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 03:00:01 VET'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 07:30:01 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 04:00:00 VET'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 08:30:00 2007 UTC
+ Sat Oct 25 23:00:00 2014 UTC
 (1 row)
 
 SELECT '2011-03-27 00:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
@@ -2199,112 +2162,76 @@ SELECT '2011-03-27 04:00:00'::timestamp AT TIME ZONE 'MSK';
  Sun Mar 27 00:00:00 2011 UTC
 (1 row)
 
-SELECT '2007-12-09 02:00:00'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 00:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
            timezone           
 ------------------------------
- Sun Dec 09 06:00:00 2007 UTC
+ Sat Oct 25 20:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:29:59'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 00:59:59'::timestamp AT TIME ZONE 'Europe/Moscow';
            timezone           
 ------------------------------
- Sun Dec 09 06:29:59 2007 UTC
+ Sat Oct 25 20:59:59 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:30:00'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 01:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
            timezone           
 ------------------------------
- Sun Dec 09 07:00:00 2007 UTC
+ Sat Oct 25 22:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:30:01'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 01:00:01'::timestamp AT TIME ZONE 'Europe/Moscow';
            timezone           
 ------------------------------
- Sun Dec 09 07:00:01 2007 UTC
+ Sat Oct 25 22:00:01 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:59:59'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 02:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
            timezone           
 ------------------------------
- Sun Dec 09 07:29:59 2007 UTC
+ Sat Oct 25 23:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 03:00:00'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 00:00:00'::timestamp AT TIME ZONE 'MSK';
            timezone           
 ------------------------------
- Sun Dec 09 07:30:00 2007 UTC
+ Sat Oct 25 20:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 03:00:01'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 00:59:59'::timestamp AT TIME ZONE 'MSK';
            timezone           
 ------------------------------
- Sun Dec 09 07:30:01 2007 UTC
+ Sat Oct 25 20:59:59 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 04:00:00'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 01:00:00'::timestamp AT TIME ZONE 'MSK';
            timezone           
 ------------------------------
- Sun Dec 09 08:30:00 2007 UTC
+ Sat Oct 25 22:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:00:00'::timestamp AT TIME ZONE 'VET';
+SELECT '2014-10-26 01:00:01'::timestamp AT TIME ZONE 'MSK';
            timezone           
 ------------------------------
- Sun Dec 09 06:00:00 2007 UTC
+ Sat Oct 25 22:00:01 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:29:59'::timestamp AT TIME ZONE 'VET';
+SELECT '2014-10-26 02:00:00'::timestamp AT TIME ZONE 'MSK';
            timezone           
 ------------------------------
- Sun Dec 09 06:29:59 2007 UTC
+ Sat Oct 25 23:00:00 2014 UTC
 (1 row)
 
-SELECT '2007-12-09 02:30:00'::timestamp AT TIME ZONE 'VET';
-           timezone           
-------------------------------
- Sun Dec 09 07:00:00 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 02:30:01'::timestamp AT TIME ZONE 'VET';
-           timezone           
-------------------------------
- Sun Dec 09 07:00:01 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 02:59:59'::timestamp AT TIME ZONE 'VET';
-           timezone           
-------------------------------
- Sun Dec 09 07:29:59 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 03:00:00'::timestamp AT TIME ZONE 'VET';
-           timezone           
-------------------------------
- Sun Dec 09 07:30:00 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 03:00:01'::timestamp AT TIME ZONE 'VET';
-           timezone           
-------------------------------
- Sun Dec 09 07:30:01 2007 UTC
-(1 row)
-
-SELECT '2007-12-09 04:00:00'::timestamp AT TIME ZONE 'VET';
-           timezone           
-------------------------------
- Sun Dec 09 08:30:00 2007 UTC
-(1 row)
-
-SELECT make_timestamptz(2007, 12, 9, 2, 0, 0, 'VET');
+SELECT make_timestamptz(2014, 10, 26, 0, 0, 0, 'MSK');
        make_timestamptz       
 ------------------------------
- Sun Dec 09 06:00:00 2007 UTC
+ Sat Oct 25 20:00:00 2014 UTC
 (1 row)
 
-SELECT make_timestamptz(2007, 12, 9, 3, 0, 0, 'VET');
+SELECT make_timestamptz(2014, 10, 26, 1, 0, 0, 'MSK');
        make_timestamptz       
 ------------------------------
- Sun Dec 09 07:30:00 2007 UTC
+ Sat Oct 25 22:00:00 2014 UTC
 (1 row)
 
 SELECT to_timestamp(         0);          -- 1970-01-01 00:00:00+00
@@ -2391,47 +2318,34 @@ SELECT '2011-03-27 00:00:00 UTC'::timestamptz;
  Sun Mar 27 04:00:00 2011 MSK
 (1 row)
 
-SET TimeZone to 'America/Caracas';
-SELECT '2007-12-09 06:00:00 UTC'::timestamptz;
+SELECT '2014-10-25 21:00:00 UTC'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 02:00:00 2007 VET
+ Sun Oct 26 01:00:00 2014 MSK
 (1 row)
 
-SELECT '2007-12-09 06:30:00 UTC'::timestamptz;
+SELECT '2014-10-25 21:59:59 UTC'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 02:30:00 2007 VET
+ Sun Oct 26 01:59:59 2014 MSK
 (1 row)
 
-SELECT '2007-12-09 06:59:59 UTC'::timestamptz;
+SELECT '2014-10-25 22:00:00 UTC'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 02:59:59 2007 VET
+ Sun Oct 26 01:00:00 2014 MSK
 (1 row)
 
-SELECT '2007-12-09 07:00:00 UTC'::timestamptz;
+SELECT '2014-10-25 22:00:01 UTC'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 02:30:00 2007 VET
+ Sun Oct 26 01:00:01 2014 MSK
 (1 row)
 
-SELECT '2007-12-09 07:00:01 UTC'::timestamptz;
+SELECT '2014-10-25 23:00:00 UTC'::timestamptz;
          timestamptz          
 ------------------------------
- Sun Dec 09 02:30:01 2007 VET
-(1 row)
-
-SELECT '2007-12-09 07:29:59 UTC'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 02:59:59 2007 VET
-(1 row)
-
-SELECT '2007-12-09 07:30:00 UTC'::timestamptz;
-         timestamptz          
-------------------------------
- Sun Dec 09 03:00:00 2007 VET
+ Sun Oct 26 02:00:00 2014 MSK
 (1 row)
 
 RESET TimeZone;
@@ -2477,46 +2391,34 @@ SELECT '2011-03-27 00:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
  Sun Mar 27 04:00:00 2011
 (1 row)
 
-SELECT '2007-12-09 06:00:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-25 21:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
          timezone         
 --------------------------
- Sun Dec 09 02:00:00 2007
+ Sun Oct 26 01:00:00 2014
 (1 row)
 
-SELECT '2007-12-09 06:30:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-25 21:59:59 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
          timezone         
 --------------------------
- Sun Dec 09 02:30:00 2007
+ Sun Oct 26 01:59:59 2014
 (1 row)
 
-SELECT '2007-12-09 06:59:59 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-25 22:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
          timezone         
 --------------------------
- Sun Dec 09 02:59:59 2007
+ Sun Oct 26 01:00:00 2014
 (1 row)
 
-SELECT '2007-12-09 07:00:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-25 22:00:01 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
          timezone         
 --------------------------
- Sun Dec 09 02:30:00 2007
+ Sun Oct 26 01:00:01 2014
 (1 row)
 
-SELECT '2007-12-09 07:00:01 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-25 23:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
          timezone         
 --------------------------
- Sun Dec 09 02:30:01 2007
-(1 row)
-
-SELECT '2007-12-09 07:29:59 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-         timezone         
---------------------------
- Sun Dec 09 02:59:59 2007
-(1 row)
-
-SELECT '2007-12-09 07:30:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-         timezone         
---------------------------
- Sun Dec 09 03:00:00 2007
+ Sun Oct 26 02:00:00 2014
 (1 row)
 
 SELECT '2011-03-26 21:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
@@ -2561,46 +2463,34 @@ SELECT '2011-03-27 00:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
  Sun Mar 27 04:00:00 2011
 (1 row)
 
-SELECT '2007-12-09 06:00:00 UTC'::timestamptz AT TIME ZONE 'VET';
+SELECT '2014-10-25 21:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
          timezone         
 --------------------------
- Sun Dec 09 02:00:00 2007
+ Sun Oct 26 01:00:00 2014
 (1 row)
 
-SELECT '2007-12-09 06:30:00 UTC'::timestamptz AT TIME ZONE 'VET';
+SELECT '2014-10-25 21:59:59 UTC'::timestamptz AT TIME ZONE 'MSK';
          timezone         
 --------------------------
- Sun Dec 09 02:30:00 2007
+ Sun Oct 26 01:59:59 2014
 (1 row)
 
-SELECT '2007-12-09 06:59:59 UTC'::timestamptz AT TIME ZONE 'VET';
+SELECT '2014-10-25 22:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
          timezone         
 --------------------------
- Sun Dec 09 02:59:59 2007
+ Sun Oct 26 01:00:00 2014
 (1 row)
 
-SELECT '2007-12-09 07:00:00 UTC'::timestamptz AT TIME ZONE 'VET';
+SELECT '2014-10-25 22:00:01 UTC'::timestamptz AT TIME ZONE 'MSK';
          timezone         
 --------------------------
- Sun Dec 09 02:30:00 2007
+ Sun Oct 26 01:00:01 2014
 (1 row)
 
-SELECT '2007-12-09 07:00:01 UTC'::timestamptz AT TIME ZONE 'VET';
+SELECT '2014-10-25 23:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
          timezone         
 --------------------------
- Sun Dec 09 02:30:01 2007
-(1 row)
-
-SELECT '2007-12-09 07:29:59 UTC'::timestamptz AT TIME ZONE 'VET';
-         timezone         
---------------------------
- Sun Dec 09 02:59:59 2007
-(1 row)
-
-SELECT '2007-12-09 07:30:00 UTC'::timestamptz AT TIME ZONE 'VET';
-         timezone         
---------------------------
- Sun Dec 09 03:00:00 2007
+ Sun Oct 26 02:00:00 2014
 (1 row)
 
 --
diff --git a/src/test/regress/sql/timestamptz.sql b/src/test/regress/sql/timestamptz.sql
index 5898747064..97e57a2403 100644
--- a/src/test/regress/sql/timestamptz.sql
+++ b/src/test/regress/sql/timestamptz.sql
@@ -280,7 +280,7 @@ SELECT * FROM TIMESTAMPTZ_TST ORDER BY a;
 DROP TABLE TIMESTAMPTZ_TST;
 
 -- test timestamptz constructors
-set TimeZone to 'America/Santiago';
+set TimeZone to 'America/New_York';
 
 -- numeric timezone
 SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33);
@@ -309,8 +309,8 @@ SELECT make_timestamptz(1881, 12, 10, 0, 0, 0, 'Europe/Paris') AT TIME ZONE 'UTC
 SELECT make_timestamptz(1910, 12, 24, 0, 0, 0, 'Nehwon/Lankhmar');
 
 -- abbreviations
-SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'CLST');
-SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'CLT');
+SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EST');
+SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EDT');
 SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'PST8PDT');
 
 RESET TimeZone;
@@ -318,8 +318,7 @@ RESET TimeZone;
 --
 -- Test behavior with a dynamic (time-varying) timezone abbreviation.
 -- These tests rely on the knowledge that MSK (Europe/Moscow standard time)
--- moved forwards in Mar 2011 and that VET (America/Caracas standard time)
--- moved backwards in Dec 2007.
+-- moved forwards in Mar 2011 and backwards again in Oct 2014.
 --
 
 SET TimeZone to 'UTC';
@@ -344,23 +343,17 @@ SELECT '2011-03-27 03:00:00 MSK'::timestamptz;
 SELECT '2011-03-27 03:00:01 MSK'::timestamptz;
 SELECT '2011-03-27 04:00:00 MSK'::timestamptz;
 
-SELECT '2007-12-09 02:00:00 America/Caracas'::timestamptz;
-SELECT '2007-12-09 02:29:59 America/Caracas'::timestamptz;
-SELECT '2007-12-09 02:30:00 America/Caracas'::timestamptz;
-SELECT '2007-12-09 02:30:01 America/Caracas'::timestamptz;
-SELECT '2007-12-09 02:59:59 America/Caracas'::timestamptz;
-SELECT '2007-12-09 03:00:00 America/Caracas'::timestamptz;
-SELECT '2007-12-09 03:00:01 America/Caracas'::timestamptz;
-SELECT '2007-12-09 04:00:00 America/Caracas'::timestamptz;
+SELECT '2014-10-26 00:00:00 Europe/Moscow'::timestamptz;
+SELECT '2014-10-26 00:59:59 Europe/Moscow'::timestamptz;
+SELECT '2014-10-26 01:00:00 Europe/Moscow'::timestamptz;
+SELECT '2014-10-26 01:00:01 Europe/Moscow'::timestamptz;
+SELECT '2014-10-26 02:00:00 Europe/Moscow'::timestamptz;
 
-SELECT '2007-12-09 02:00:00 VET'::timestamptz;
-SELECT '2007-12-09 02:29:59 VET'::timestamptz;
-SELECT '2007-12-09 02:30:00 VET'::timestamptz;
-SELECT '2007-12-09 02:30:01 VET'::timestamptz;
-SELECT '2007-12-09 02:59:59 VET'::timestamptz;
-SELECT '2007-12-09 03:00:00 VET'::timestamptz;
-SELECT '2007-12-09 03:00:01 VET'::timestamptz;
-SELECT '2007-12-09 04:00:00 VET'::timestamptz;
+SELECT '2014-10-26 00:00:00 MSK'::timestamptz;
+SELECT '2014-10-26 00:59:59 MSK'::timestamptz;
+SELECT '2014-10-26 01:00:00 MSK'::timestamptz;
+SELECT '2014-10-26 01:00:01 MSK'::timestamptz;
+SELECT '2014-10-26 02:00:00 MSK'::timestamptz;
 
 SELECT '2011-03-27 00:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
 SELECT '2011-03-27 01:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
@@ -382,26 +375,20 @@ SELECT '2011-03-27 03:00:00'::timestamp AT TIME ZONE 'MSK';
 SELECT '2011-03-27 03:00:01'::timestamp AT TIME ZONE 'MSK';
 SELECT '2011-03-27 04:00:00'::timestamp AT TIME ZONE 'MSK';
 
-SELECT '2007-12-09 02:00:00'::timestamp AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 02:29:59'::timestamp AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 02:30:00'::timestamp AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 02:30:01'::timestamp AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 02:59:59'::timestamp AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 03:00:00'::timestamp AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 03:00:01'::timestamp AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 04:00:00'::timestamp AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-26 00:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-26 00:59:59'::timestamp AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-26 01:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-26 01:00:01'::timestamp AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-26 02:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
 
-SELECT '2007-12-09 02:00:00'::timestamp AT TIME ZONE 'VET';
-SELECT '2007-12-09 02:29:59'::timestamp AT TIME ZONE 'VET';
-SELECT '2007-12-09 02:30:00'::timestamp AT TIME ZONE 'VET';
-SELECT '2007-12-09 02:30:01'::timestamp AT TIME ZONE 'VET';
-SELECT '2007-12-09 02:59:59'::timestamp AT TIME ZONE 'VET';
-SELECT '2007-12-09 03:00:00'::timestamp AT TIME ZONE 'VET';
-SELECT '2007-12-09 03:00:01'::timestamp AT TIME ZONE 'VET';
-SELECT '2007-12-09 04:00:00'::timestamp AT TIME ZONE 'VET';
+SELECT '2014-10-26 00:00:00'::timestamp AT TIME ZONE 'MSK';
+SELECT '2014-10-26 00:59:59'::timestamp AT TIME ZONE 'MSK';
+SELECT '2014-10-26 01:00:00'::timestamp AT TIME ZONE 'MSK';
+SELECT '2014-10-26 01:00:01'::timestamp AT TIME ZONE 'MSK';
+SELECT '2014-10-26 02:00:00'::timestamp AT TIME ZONE 'MSK';
 
-SELECT make_timestamptz(2007, 12, 9, 2, 0, 0, 'VET');
-SELECT make_timestamptz(2007, 12, 9, 3, 0, 0, 'VET');
+SELECT make_timestamptz(2014, 10, 26, 0, 0, 0, 'MSK');
+SELECT make_timestamptz(2014, 10, 26, 1, 0, 0, 'MSK');
 
 SELECT to_timestamp(         0);          -- 1970-01-01 00:00:00+00
 SELECT to_timestamp( 946684800);          -- 2000-01-01 00:00:00+00
@@ -425,15 +412,11 @@ SELECT '2011-03-26 23:00:01 UTC'::timestamptz;
 SELECT '2011-03-26 23:59:59 UTC'::timestamptz;
 SELECT '2011-03-27 00:00:00 UTC'::timestamptz;
 
-SET TimeZone to 'America/Caracas';
-
-SELECT '2007-12-09 06:00:00 UTC'::timestamptz;
-SELECT '2007-12-09 06:30:00 UTC'::timestamptz;
-SELECT '2007-12-09 06:59:59 UTC'::timestamptz;
-SELECT '2007-12-09 07:00:00 UTC'::timestamptz;
-SELECT '2007-12-09 07:00:01 UTC'::timestamptz;
-SELECT '2007-12-09 07:29:59 UTC'::timestamptz;
-SELECT '2007-12-09 07:30:00 UTC'::timestamptz;
+SELECT '2014-10-25 21:00:00 UTC'::timestamptz;
+SELECT '2014-10-25 21:59:59 UTC'::timestamptz;
+SELECT '2014-10-25 22:00:00 UTC'::timestamptz;
+SELECT '2014-10-25 22:00:01 UTC'::timestamptz;
+SELECT '2014-10-25 23:00:00 UTC'::timestamptz;
 
 RESET TimeZone;
 
@@ -445,13 +428,11 @@ SELECT '2011-03-26 23:00:01 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
 SELECT '2011-03-26 23:59:59 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
 SELECT '2011-03-27 00:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
 
-SELECT '2007-12-09 06:00:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 06:30:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 06:59:59 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 07:00:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 07:00:01 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 07:29:59 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
-SELECT '2007-12-09 07:30:00 UTC'::timestamptz AT TIME ZONE 'America/Caracas';
+SELECT '2014-10-25 21:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-25 21:59:59 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-25 22:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-25 22:00:01 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
+SELECT '2014-10-25 23:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
 
 SELECT '2011-03-26 21:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
 SELECT '2011-03-26 22:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
@@ -461,13 +442,11 @@ SELECT '2011-03-26 23:00:01 UTC'::timestamptz AT TIME ZONE 'MSK';
 SELECT '2011-03-26 23:59:59 UTC'::timestamptz AT TIME ZONE 'MSK';
 SELECT '2011-03-27 00:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
 
-SELECT '2007-12-09 06:00:00 UTC'::timestamptz AT TIME ZONE 'VET';
-SELECT '2007-12-09 06:30:00 UTC'::timestamptz AT TIME ZONE 'VET';
-SELECT '2007-12-09 06:59:59 UTC'::timestamptz AT TIME ZONE 'VET';
-SELECT '2007-12-09 07:00:00 UTC'::timestamptz AT TIME ZONE 'VET';
-SELECT '2007-12-09 07:00:01 UTC'::timestamptz AT TIME ZONE 'VET';
-SELECT '2007-12-09 07:29:59 UTC'::timestamptz AT TIME ZONE 'VET';
-SELECT '2007-12-09 07:30:00 UTC'::timestamptz AT TIME ZONE 'VET';
+SELECT '2014-10-25 21:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
+SELECT '2014-10-25 21:59:59 UTC'::timestamptz AT TIME ZONE 'MSK';
+SELECT '2014-10-25 22:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
+SELECT '2014-10-25 22:00:01 UTC'::timestamptz AT TIME ZONE 'MSK';
+SELECT '2014-10-25 23:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
 
 --
 -- Test that AT TIME ZONE isn't misoptimized when using an index (bug #14504)