diff options
| -rw-r--r-- | doc/src/sgml/catalogs.sgml | 4 | ||||
| -rw-r--r-- | doc/src/sgml/func.sgml | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml index 6d5dad369d7..d6baf84248e 100644 --- a/doc/src/sgml/catalogs.sgml +++ b/doc/src/sgml/catalogs.sgml @@ -8341,7 +8341,9 @@ The view <structname>pg_timezone_names</structname> provides a list of time zone names that are recognized by <command>SET TIMEZONE</>, along with their associated abbreviations, UTC offsets, - and daylight-savings status. + and daylight-savings status. (Technically, + <productname>PostgreSQL</productname> uses <acronym>UT1</> rather + than UTC because leap seconds are not handled.) Unlike the abbreviations shown in <link linkend="view-pg-timezone-abbrevs"><structname>pg_timezone_abbrevs</structname></link>, 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 4c3e232838c..c03dd6c8a3e 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -6898,7 +6898,9 @@ SELECT EXTRACT(SECOND FROM TIME '17:12:28.5'); <para> 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. + zones west of UTC. (Technically, + <productname>PostgreSQL</productname> uses <acronym>UT1</> because + leap seconds are not handled.) </para> </listitem> </varlistentry> |