doc: remove mention of UT1 in representing time

UT1 was incorrectly specified as our time representation.  (UT1 is
astronomical time.)  We are not actually UTC either because we ignore
leap seconds.

Reported-by: Thomas Munro
Discussion: CAEepm=3-TW9PLwGZhqjSSiEQ9UzJEKE-HELQDzRE0QUSCp8dgw@mail.gmail.com

diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index 18e5faef5748c763ec022c9d7c128b7717f8fcb3..0689cc97205040a3a3051b390c6346295037b831 100644 (file)
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -9804,8 +9804,8 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
    of time zone names that are recognized by SET TIMEZONE,
    along with their associated abbreviations, UTC offsets,
    and daylight-savings status.  (Technically,
-   PostgreSQL uses UT1 rather
-   than UTC because leap seconds are not handled.)
+   PostgreSQL does not use UTC because leap
+   seconds are not handled.)
    Unlike the abbreviations shown in 
    linkend="view-pg-timezone-abbrevs">pg_timezone_abbrevs, many of these names imply a set of daylight-savings transition
    date rules.  Therefore, the associated information changes across local DST


diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml

index 98b3995f2252d1f3436a3fc76f8d239a079b8aee..052b8f5ba05760d2651d6ad2ee698c49d8fd20c8 100644 (file)

--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -7578,7 +7578,7 @@ SELECT EXTRACT(SECOND FROM TIME '17:12:28.5');
         The time zone offset from UTC, measured in seconds.  Positive values
         correspond to time zones east of UTC, negative values to
         zones west of UTC.  (Technically,
-        PostgreSQL uses UT1 because
+        PostgreSQL does not use UTC because
         leap seconds are not handled.)
        
       

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 98b3995f2252d1f3436a3fc76f8d239a079b8aee..052b8f5ba05760d2651d6ad2ee698c49d8fd20c8 100644 (file)
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -7578,7 +7578,7 @@ SELECT EXTRACT(SECOND FROM TIME '17:12:28.5');
         The time zone offset from UTC, measured in seconds.  Positive values
         correspond to time zones east of UTC, negative values to
         zones west of UTC.  (Technically,
-        PostgreSQL uses UT1 because
+        PostgreSQL does not use UTC because
         leap seconds are not handled.)