diff --git a/src/test/regress/expected/horology-no-DST-before-1970.out b/src/test/regress/expected/horology-no-DST-before-1970.out
index b8b7423ec52..23dbc59a679 100644
--- a/src/test/regress/expected/horology-no-DST-before-1970.out
+++ b/src/test/regress/expected/horology-no-DST-before-1970.out
@@ -1709,11 +1709,11 @@ SELECT '' AS "160", d.f1 AS "timestamp", t.f1 AS "interval", d.f1 + t.f1 AS plus
      | Tue Dec 31 17:32:01 1996 PST | @ 34 years                    | Tue Dec 31 17:32:01 2030 PST
      | Fri Dec 31 17:32:01 1999 PST | @ 34 years                    | Sat Dec 31 17:32:01 2033 PST
      | Sat Jan 01 17:32:01 2000 PST | @ 34 years                    | Sun Jan 01 17:32:01 2034 PST
-     | Wed Mar 15 02:14:05 2000 PST | @ 34 years                    | Wed Mar 15 02:14:05 2034 PST
-     | Wed Mar 15 03:14:04 2000 PST | @ 34 years                    | Wed Mar 15 03:14:04 2034 PST
-     | Wed Mar 15 08:14:01 2000 PST | @ 34 years                    | Wed Mar 15 08:14:01 2034 PST
-     | Wed Mar 15 12:14:03 2000 PST | @ 34 years                    | Wed Mar 15 12:14:03 2034 PST
-     | Wed Mar 15 13:14:02 2000 PST | @ 34 years                    | Wed Mar 15 13:14:02 2034 PST
+     | Wed Mar 15 02:14:05 2000 PST | @ 34 years                    | Wed Mar 15 02:14:05 2034 PDT
+     | Wed Mar 15 03:14:04 2000 PST | @ 34 years                    | Wed Mar 15 03:14:04 2034 PDT
+     | Wed Mar 15 08:14:01 2000 PST | @ 34 years                    | Wed Mar 15 08:14:01 2034 PDT
+     | Wed Mar 15 12:14:03 2000 PST | @ 34 years                    | Wed Mar 15 12:14:03 2034 PDT
+     | Wed Mar 15 13:14:02 2000 PST | @ 34 years                    | Wed Mar 15 13:14:02 2034 PDT
      | Sun Dec 31 17:32:01 2000 PST | @ 34 years                    | Sun Dec 31 17:32:01 2034 PST
      | Mon Jan 01 17:32:01 2001 PST | @ 34 years                    | Mon Jan 01 17:32:01 2035 PST
      | Sat Sep 22 18:19:20 2001 PDT | @ 34 years                    | Sat Sep 22 18:19:20 2035 PDT
diff --git a/src/test/regress/expected/horology-solaris-1947.out b/src/test/regress/expected/horology-solaris-1947.out
index 1601a346f01..13278c785bc 100644
--- a/src/test/regress/expected/horology-solaris-1947.out
+++ b/src/test/regress/expected/horology-solaris-1947.out
@@ -1709,11 +1709,11 @@ SELECT '' AS "160", d.f1 AS "timestamp", t.f1 AS "interval", d.f1 + t.f1 AS plus
      | Tue Dec 31 17:32:01 1996 PST | @ 34 years                    | Tue Dec 31 17:32:01 2030 PST
      | Fri Dec 31 17:32:01 1999 PST | @ 34 years                    | Sat Dec 31 17:32:01 2033 PST
      | Sat Jan 01 17:32:01 2000 PST | @ 34 years                    | Sun Jan 01 17:32:01 2034 PST
-     | Wed Mar 15 02:14:05 2000 PST | @ 34 years                    | Wed Mar 15 02:14:05 2034 PST
-     | Wed Mar 15 03:14:04 2000 PST | @ 34 years                    | Wed Mar 15 03:14:04 2034 PST
-     | Wed Mar 15 08:14:01 2000 PST | @ 34 years                    | Wed Mar 15 08:14:01 2034 PST
-     | Wed Mar 15 12:14:03 2000 PST | @ 34 years                    | Wed Mar 15 12:14:03 2034 PST
-     | Wed Mar 15 13:14:02 2000 PST | @ 34 years                    | Wed Mar 15 13:14:02 2034 PST
+     | Wed Mar 15 02:14:05 2000 PST | @ 34 years                    | Wed Mar 15 02:14:05 2034 PDT
+     | Wed Mar 15 03:14:04 2000 PST | @ 34 years                    | Wed Mar 15 03:14:04 2034 PDT
+     | Wed Mar 15 08:14:01 2000 PST | @ 34 years                    | Wed Mar 15 08:14:01 2034 PDT
+     | Wed Mar 15 12:14:03 2000 PST | @ 34 years                    | Wed Mar 15 12:14:03 2034 PDT
+     | Wed Mar 15 13:14:02 2000 PST | @ 34 years                    | Wed Mar 15 13:14:02 2034 PDT
      | Sun Dec 31 17:32:01 2000 PST | @ 34 years                    | Sun Dec 31 17:32:01 2034 PST
      | Mon Jan 01 17:32:01 2001 PST | @ 34 years                    | Mon Jan 01 17:32:01 2035 PST
      | Sat Sep 22 18:19:20 2001 PDT | @ 34 years                    | Sat Sep 22 18:19:20 2035 PDT