Postgresql 中文操作指南

54.32. pg_timezone_names #

视图 pg_timezone_names 提供一个 SET TIMEZONE 识别的时区名称列表，以及关联的缩写、UTC 偏移量和夏令时状态。（从技术上讲，PostgreSQL 不使用 UTC，因为不处理闰秒。）与 pg_timezone_abbrevs 中显示的缩写不同，其中许多名称隐含一组夏令时转换日期规则。因此，关联信息在本地 DST 边界内发生更改。显示的信息基于 CURRENT_TIMESTAMP 的当前值计算。

The view pg_timezone_names provides a list of time zone names that are recognized by SET TIMEZONE, along with their associated abbreviations, UTC offsets, and daylight-savings status. (Technically, PostgreSQL does not use UTC because leap seconds are not handled.) Unlike the abbreviations shown in pg_timezone_abbrevs, many of these names imply a set of daylight-savings transition date rules. Therefore, the associated information changes across local DST boundaries. The displayed information is computed based on the current value of CURRENT_TIMESTAMP.

Table 54.32. pg_timezone_names Columns

Column Type

Description

name text

Time zone name

abbrev text

Time zone abbreviation

utc_offset interval

Offset from UTC (positive means east of Greenwich)

is_dst bool

True if currently observing daylight savings